Conference Agenda
Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).
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Session Overview |
| Date: Monday, 18/Feb/2019 | ||
| 9:00am - 1:00pm |
Registration |
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| 1:00pm - 2:00pm |
Opening Location: Audimax, streaming to BIG HS |
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| 2:00pm - 3:00pm |
PML: Prandtl Memorial Lecture Location: Audimax, streaming to BIG HS Chair: Martin Oberlack Finite-size Lagrangian coherent structures |
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| 3:00pm - 4:00pm |
PL1: Plenary Lecture 1 Location: Audimax, streaming to BIG HS Chair: Guido Kanschat PDE constrained Bayesian inference: when numerics meets statistics |
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| 4:00pm - 4:30pm |
Coffee Break Location: Festsaal, Hof 8 |
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| 4:30pm - 6:30pm |
YRM1: Modeling and control of Port-Hamiltonian systems Location: HS 31 Chair: Robert Altmann Chair: Philipp Schulze Dimension- and complexity-reduction for nonlinear partial differential port-Hamiltonian equations preserving an energy interpretation 5:10pm - 5:50pm Trajectory control of an elastic manipulator based on the discretized port-Hamiltonian model 5:50pm - 6:30pm Numerical approximation of heat transfer on heterogenous media |
YRM2: Recent advances in Galerkin methods based on polytopal meshes Location: BIG HS Chair: Lorenzo Mascotto Discontinuous Galerkin methods for the biharmonic problem on polygonal and polyhedral meshes 4:50pm - 5:10pm Adaptive virtual element methods for parabolic problems using general polygonal meshes 5:10pm - 5:30pm Building bridges between Galerkin methods on polytopal meshes 5:30pm - 5:50pm Nonconforming Trefftz virtual element method for the Helmholtz problem 5:50pm - 6:10pm Discontinuous Galerkin approximation of flows in fractured porous media on polytopal meshes 6:10pm - 6:30pm Zienkiewicz-Zhu-type error estimator on polygonal meshes |
| YRM3: Recent developments in damage mechanics Location: HS 21 Chair: Philipp Junker Chair: Xiaoying Zhuang Wear mechanism of hard phase containing materials 4:50pm - 5:10pm On the regularization of ductile damage models 5:10pm - 5:30pm Defects detection for piezoelectric materials using isogeometric symmetric Galerkin boundary element method and level sets 5:30pm - 5:50pm An improved numerical treatment for gradient-enhanced and brittle damage modeling 5:50pm - 6:10pm Phase field modeling of Hertzian indentation fracture 6:10pm - 6:30pm An anisotropic brittle damage model with a damage tensor of second order using a micromorphic approach |
YRM4: Mathematical theory of deep learning Location: HS 41 Chair: Rafael Reisenhofer Chair: Philipp Petersen Deep convolutional networks from sparse coding principles 4:50pm - 5:10pm Optimal approximation for Wilson bases with ReLU neural networks 5:10pm - 5:30pm Approximation spaces of deep neural networks 5:30pm - 5:50pm Deep learning for inverse problems. Where are we, and how far can we go? 5:50pm - 6:10pm Gabor frames and deep scattering networks in audio processing 6:10pm - 6:30pm Invertible neural networks |
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| YRM5: Multi-physics modeling of elastomers Location: HS 07 Chair: Vu Ngoc Khiêm Chair: Markus Mehnert Fracture simulation by the phase-field method for polymeric materials considering rate-dependent properties 4:50pm - 5:10pm Coupled thermomechanical model for strain induced crystallization in polymers 5:10pm - 5:30pm Thermo-micromechanics of strain-induced crystallization based on the analytical network-averaging concept 5:30pm - 5:50pm Modeling electro-elastic coupling phenomena of electroactive polymers in the context of structural mechanics 5:50pm - 6:10pm Electro-mechanical characterization of VHB 4905 6:10pm - 6:30pm Reduced-order modelling and computational homogenisation of magnetorheological elastomers |
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| 7:00pm - 10:00pm |
Welcome Reception Location: Aux Gazelles |
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| Date: Tuesday, 19/Feb/2019 | ||
| 8:30am - 10:30am |
S02.01: Biomechanics Location: HS 01 Chair: Markus Böl Challenges and perspectives in brain tissue testing and modeling 9:10am - 9:30am CANCELLED!! The multiphysics of prion-like disease: spreading and atrophy in neurodegeneration 9:30am - 9:50am Modeling disease-dependent elastic fiber degradation in aortic dissection 9:50am - 10:10am A computational model for soft biological tissues considering the influence of injury on growth and remodelling 10:10am - 10:30am Modeling of the corrosion-fatigue behaviour of biodegradable magnesium alloys |
S03.01: Damage and fracture mechanics Location: HS 50 Chair: Markus Kästner A phase-field model of brittle fracture for an isogeometric Reissner-Mindlin shell formulation 8:50am - 9:10am An FFT-based solver for brittle fracture on heterogeneous microstructures 9:10am - 9:30am Phase field modeling of interface effects on cracks in heterogeneous materials 9:30am - 9:50am A new framework to simulate fatigue fracture in brittle materials 9:50am - 10:10am Phase field modeling of dynamic brittle fracture of thin shells 10:10am - 10:30am Peridynamic investigation of dynamic brittle fracture |
| S04.01: Structural mechanics Location: Audimax Chair: Manfred Bischoff Transformations and enhancement approaches for the large deformation EAS-method 8:50am - 9:10am On the relaxation of continuity conditions for finite element schemes based on a least-squares approach 9:10am - 9:30am Selective strain scaling for tetrahedral finite elements 9:30am - 9:50am Application of the fast nonlinear analysis method on a clamped beam with a cubic spring 9:50am - 10:10am Large deformation tangential-displacement normal-normal-stress elements 10:10am - 10:30am Analysis-suitable CAD models based on watertight Boolean operations |
S04.02: Structural mechanics Location: SR 04 Chair: Sven Klinkel A meshfree method fulfilling the conditions on Galerkin solution schemes 8:50am - 9:10am Peridynamic Petrov-Galerkin method: a generalization of the peridynamic theory of correspondence materials 9:10am - 9:30am Bulk and shear properties of architected, two-dimensional artificial materials as a function of their inner lattice design 9:30am - 9:50am Energy absorption of re-entrant auxetic structures: a parametric study 9:50am - 10:10am Numerical investigations about the use of lattice structures in energy absorbing systems 10:10am - 10:30am Macroscopic modeling of open cell foams |
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| S05.01: Nonlinear oscillations Location: HS 16 Chair: Katrin Ellermann From cybernetics to mechatronics - seven decades of interdisciplinary engineering 9:10am - 9:30am Sensitivity in machining systems 9:30am - 9:50am Chatter stability analysis for milling processes 9:50am - 10:10am Nonlinear dynamical systems excited by large amplitude random loads 10:10am - 10:30am Vibrations of an alpine ski under structural randomness |
S06.01: Material modelling in solid mechanics Location: BIG HS Chair: Thomas Antretter Phase Transformations
A thermomechanical modelling framework for selective laser melting based on phase transformations 8:50am - 9:10am A variational material model for shape memory alloys under thermal cycling 9:10am - 9:30am Martensitic transformation at a crack under mode I and II loading 9:30am - 9:50am Modeling of electric field-induced magnetization switching in multiferroic heterostructures 9:50am - 10:10am Open problems in constitutive modelling of martensite |
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| S07.01: Coupled problems Location: HS 21 Chair: Philipp Birken On the motion of a bubble-soap: the Navier-Stokes equations coupled with surface tension forces on an immersed interface 8:50am - 9:10am A concept for aortic dissection with fluid-structure-crack interaction 9:10am - 9:30am Solid-fluid coupling in a fully Lagrangian framework 9:30am - 9:50am A novel multi-vector interface quasi-Newton method for partitioned fluid-structure interaction 9:50am - 10:10am Model order reduction of parameterised monolithic fluid-structure interaction 10:10am - 10:30am Numerical solution of viscoelastic fluid-structure-diffusion systems with applications in ophthalmology |
S08.01: Multiscales and homogenization Location: HS 41 Chair: Benjamin Klusemann A short tour through continuum micromechanics and multiscale modeling of inhomogeneous materials 9:10am - 9:30am A Hashin-Shtrikman type semi-analytical homogenization procedure in multiscale modeling to account for coupled problems 9:30am - 9:50am Damage simulation of fibre reinforced composites using mean-field homogenization methods 9:50am - 10:10am Computational homogenisation of thermo-inelastic composites with an emphasis on weak micro-periodicity 10:10am - 10:30am Homogenization of stiffness and eigenstresses/eigenstrains of matrix-inclusion composites |
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| S09.01: Laminar flows and transition Location: HS 03 Chair: Björn Hof A network of invariant solutions underlying spatio-temporal patterns in inclined layer convection 9:10am - 9:30am Dimension of the attractor in weakly turbulent Taylor-Couette flow 9:30am - 9:50am Dynamic feedback control of edge states in plane Poiseuille flow 9:50am - 10:10am Asymptotic suction boundary layer: alternative linear and weakly non-modal stability modes 10:10am - 10:30am Symmetry-induced unstable modes and transient growth in a Taylor-Couette type model problem |
S11.01: Interfacial flows Location: HS 02 Chair: Tatiana Gambaryan-Roisman Bubble-particles collision and attachment in laminar and turbulent flows 9:10am - 9:30am Oscillating hydrogen bubbles at microelectrodes 9:30am - 9:50am Numerical investigation of simultaneous multi-bubble collapse scenarios with varying initial size 9:50am - 10:10am Numerical investigations of the hydrodynamics and oxygen mass-transfer in aerated tanks 10:10am - 10:30am On the influence of strain hardening on a rising bubble |
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| S12.01: Waves and acoustics Location: HS 34 Chair: Barbara Kaltenbacher Evaluation of source signature during Full Waveform Inversion for seismic reconnaissance in tunneling 8:50am - 9:10am Initial source estimation of the wave equation with applications to photoacoustic tomography 9:10am - 9:30am Numerical method to determine the inverse solution of two impacting rods of non-constant cross section 9:30am - 9:50am Frequency-bounded delay and sum: a modified damage detection method in thin walled plates 9:50am - 10:10am Sensor positioning in the context of wave-based damage identification in dams 10:10am - 10:30am Simulation of vibrational sources and vibroacoustic transfer in wind turbine drivetrains |
S13.01: Flow control Location: SR 07 Chair: Bernd Noack Machine learning of interpretable nonlinear models for unsteady flow physics 9:10am - 9:30am Artificial intelligence control applied to drag reduction of the fluidic pinball 9:30am - 9:50am Control of chaotic systems by deep reinforcement learning 9:50am - 10:10am Control of transient instabilities by order reduction on optimally time-dependent modes |
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| S14.01: Applied analysis Location: HS 32 Chair: Patrick Dondl Mathematical modeling of structure and function in interacting cell systems 9:10am - 9:30am A bulk-surface reaction-diffusion system for cell polarization 9:30am - 9:50am A PDE model for bleb formation and interaction with linker proteins 9:50am - 10:10am Balanced viscosity solutions for infinite-dimensional multi-rate systems 10:10am - 10:30am On Fokker-Planck equations with mass evolution |
S14.02: Applied analysis Location: SR 08 Chair: Ulisse Stefanelli A higher order geometrically nonlinear Cosserat-shell model with initial curvature effects 9:10am - 9:30am Idealized pure and simple shear 9:30am - 9:50am Tikhonov regularization including tolerances in parameter space 9:50am - 10:10am Variational problems involving Caccioppoli partitions 10:10am - 10:30am Homogenization and dimension reduction of a textile shell in linear elasticity |
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| S15.01: Uncertainty quantification Location: HS 07 Chair: Hanno Gottschalk Uncertainty quantification with stochastic discontinuities 9:10am - 9:30am Random elliptic PDEs with levy coefficients 9:30am - 9:50am The diffusion equation with random diffusion coefficient given by (transformed) Lévy fields 9:50am - 10:10am Fast simulation of non-stationary Gaussian random fields: the sinc-multilevel approach 10:10am - 10:30am Sparse compression of expected solution operators |
S17.01: Applied and numerical linear algebra Location: Elise-Richter HS Chair: Oliver Rheinbach Model reduction techniques for port-Hamiltonian differential-algebraic systems 8:50am - 9:10am Parametric model order reduction based on H2xL2 optimality conditions 9:10am - 9:30am On the application of a greedy reduced basis scheme to the multi-frequency solution of acoustic boundary element equations 9:30am - 9:50am Linear algebra properties of dissipative Hamiltonian systems 9:50am - 10:10am Topological analysis of FMUs in liquid flow networks 10:10am - 10:30am Kemeny's constant and Braess' paradox |
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| S18.01: Numerical methods of differential equations Location: HS 31 Chair: Mario Ohlberger Localization and mass conservation in reduced basis methods 8:50am - 9:10am A technique for rational model order reduction of parametric problems lacking uniform inf-sup stability 9:10am - 9:30am Model order reduction for space-adaptive simulations of unsteady incompressible flows 9:30am - 9:50am Towards efficient band structure computations of photonic crystals using model order reduction 9:50am - 10:10am Multi-fidelity optimization using reduced order models 10:10am - 10:30am Generalized Galerkin approximation in time for wave equations |
S19.01: Optimization of differential equations Location: HS 30 Chair: Roland Herzog An optimal design of an elastic plate in a dynamic contact with a rigid obstacle 8:50am - 9:10am Necessary optimality conditions of VI constrained shape optimization problems 9:10am - 9:30am Efficient interface identification with an optimum experimental design 9:30am - 9:50am A discrete shape manifold and its use in PDE-constrained shape optimization 9:50am - 10:10am Multimaterial topology optimization based on the topological derivative 10:10am - 10:30am Topology optimization of electrical machines with stress constraints |
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| S20.01: Dynamics and control Location: HS 05 Chair: Sergio Lucia H2-optimal model order reduction of interconnected systems 8:50am - 9:10am Model reduction of district heating using network decomposition 9:10am - 9:30am Filtering and model order reduction of PDAEs with stochastic boundary data 9:30am - 9:50am Semi-active $H_\infty$ damping optimization by adaptive interpolation 9:50am - 10:10am Fixed order H-infinity controller design for delay systems 10:10am - 10:30am Polynomial approximation of Isaacs' equation and applications to control under uncertainty |
S22.01: Scientific computing Location: HS 42 Chair: Christian Himpe Model order reduction for the masses 9:10am - 9:30am A-priori pole selection for reduced models in structural dynamics 9:30am - 9:50am Parametric model order reduction using tensor principal orthogonal decomposition 9:50am - 10:10am Model hierarchy of upper-convected Maxwell models with regard to simulations of melt-blowing processes 10:10am - 10:30am Efficient structural reliability analysis coupling an adaptive subset simulation and PGD model reduction |
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| S23.01: Applied operator theory Location: SR 06 Chair: Olaf Post Schrodinger operators exhibiting an abrupt change of the spectral character 9:10am - 9:30am Finite element solutions to a Sturm-Liouville transmission eigenproblem 9:30am - 9:50am The non-real spectrum of singular indefinite Sturm-Liouville operators with uniformly locally integrable potentials 9:50am - 10:10am Dirac systems on the semi-axis: reflection coefficients and Weyl functions 10:10am - 10:30am Self-adjoint Dirac operators on domains in $\mathbb{R}^3$ |
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| 10:30am - 11:00am |
Coffee Break Location: Festsaal, Hof 8, Student Space |
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| 11:00am - 12:00pm |
PL2: Plenary Lecture 2 Location: Audimax, streaming to BIG HS Chair: Jan Modersitzki Direct methods for camera-based 3D reconstruction & SLAM |
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| 12:00pm - 1:00pm |
PL3: Plenary Lecture 3 Location: Audimax, streaming to BIG HS Chair: Josef Eberhardsteiner Towards unified hierarchical modeling of hard and soft biological tissues |
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| 1:00pm - 2:00pm |
Lunch Break |
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| 2:00pm - 4:00pm |
DFG-PP 1748: Reliable simulation techniques in solid mechanics. Development of non-standard discretization methods, mechanical and mathematical analysis Location: HS 32 Chair: Jörg Schröder Chair: Thomas Wick A new C0-continuous finite element formulation for gradient elasticity 2:20pm - 2:40pm A posteriori error control for the finite cell method 2:40pm - 3:00pm A posteriori estimator for the adaptive solution of a quasi-static fracture phase field model 3:00pm - 3:20pm Adaptive isogeometric discretizations for diffuse modelling of discontinuities 3:20pm - 3:40pm Quasi-collocation methods for isogemetric and stochastic finite-element-analysis 3:40pm - 4:00pm The alternating direction method of multipliers with variable step sizes and its application to the simulation of BV-damage evolution |
DFG-PP 1798: Compressed sensing in information processing (CoSIP) Location: HS 02 Chair: Arash Behboodi Robust one-bit compressed sensing with non-Gaussian measurements 2:40pm - 3:00pm Low rank recovery from phaseless inner products with matrix groups 3:00pm - 3:20pm Learning the invisible 3:20pm - 3:40pm Analysis of the generalization error: empirical risk minimization over deep artificial neural networks overcomes the curse of dimensionality in the numerical approximation of black-scholes partial differential equations 3:40pm - 4:00pm A gridless CS approach for channel estimation in hybrid massive MIMO systems |
| DFG-PP 1886: Polymorphic uncertainty modelling for the numerical design of structures Location: HS 42 Chair: Michael Kaliske Application of recurrent neural networks in structural analysis of concrete structures considering polymorphic uncertainty 2:20pm - 2:40pm Polymorphic uncertainty propagation with application to failure analysis of adhesive bonds in rotor blades 2:40pm - 3:00pm Polymorphic uncertainty quantification in acoustic systems 3:00pm - 3:20pm Polymorphic Uncertainty Quantification via Hierarchical Low Rank Tensors 3:20pm - 3:40pm Some theoretical aspects of the spectral Fuzzy FEM 3:40pm - 4:00pm Uncertainty Quantification in Fluid Mechanics and Fluid-Structure Interaction Using Cheap Approximators |
DFG-PP 1897.01: Calm, smooth and smart - novel approaches for influencing vibrations by means of deliberately introduced dissipation Location: HS 41 Chair: Peter Eberhard A numerical model for analysis of design parameters for particle dampers 2:20pm - 2:40pm Investigating the effect of complex particle shapes in liquid filled particle dampers using coupled DEM-SPH methods 2:40pm - 3:00pm Model reduction of second-order systems with MORLAB 3:00pm - 3:20pm Global proper orthogonal decomposition for parametric nonlinear model order reduction 3:20pm - 3:40pm Impact of model reduction on frequency responses of linear and geometric nonlinear finite element models 3:40pm - 4:00pm Parameter variation on nonlinear energy sink attached to multiple degree of freedom system |
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| DFG-PP 1962.01: Non smooth and complementarity-based distributed parameter systems: simulation and hierarchical optimization Location: HS 07 Chair: Michael Hintermüller Structural total variation regularization with applications in inverse problems 2:40pm - 3:00pm Monotone multilevel method and least-squares finite elements for linear elastic contact 3:00pm - 3:20pm CANCELLED!! Directional differentiability for parabolic QVIs of obstacle type 3:20pm - 3:40pm Optimal control of static contact in finite strain elasticity 3:40pm - 4:00pm Optimizing fracture propagation using a phase-field approach |
DFG-PP 2020.01: Cyclic deterioration of high-performance concrete in an experimental-virtual lab Location: HS 31 Chair: Stefan Löhnert Investigation of failure mechanisms in high strength concrete using 3D-XFEM 2:20pm - 2:40pm A unified multiscale modelling approach for concrete fatigue with microscale damage-mechanism implementations 2:40pm - 3:00pm Description and analysis of pullout behavior of hooked steel fibers embedded in high performance concrete using phase-field modeling 3:00pm - 3:20pm Water-induced failure mechanics for concrete: micro-mechanical model, experimental observation and phase-field coupling 3:20pm - 3:40pm Phase-field modeling and simulation of fatigue phenomena in brittle materials 3:40pm - 4:00pm On the analysis of crack-closure behaviour using the phase-field method together with the novel concept of Representative Crack Elements |
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| MS1: Mathematical modeling, analysis and simulation of drug distribution for efficient pharmacotherapy Location: HS 34 Chair: Jurjen Duintjer Tebbens Chair: Elfriede Friedmann An introduction into current mathematical drug distribution models from the pharmacologic point of view 2:30pm - 3:00pm Predicting drug disposition and metabolism in breast tumours 3:00pm - 3:30pm On conservative and unconditionally positivity preserving numerical methods 3:30pm - 4:00pm Mathematical modelling of intracellular protein dynamics: the importance of the spatial organisation of an eukaryotic cell |
MS2: Topology optimization of structures considering elaborate constraints and variables Location: BIG HS Chair: Thomas Vietor Chair: Axel Schumacher Chair: Sierk Fiebig Compilation of activities to extend the standard topology optimization procedures for real mechanical problems 2:20pm - 2:40pm Topology optimization for real industrial design problems 2:40pm - 3:00pm Application of topology optimization in automotive industry 3:00pm - 3:20pm Form finding by shape optimization and vertex morphing 3:20pm - 3:40pm Meta-modelling of the missing link between the analytical Topological Derivative equations and sensitivities for the optimization of crash loaded structures 3:40pm - 4:00pm Optimization of structure-borne sound propagation using structural intensity |
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| MS3: Research software and -data: How to ensure replicability, reproducibility, and reusability Location: HS 50 Chair: Jörg Fehr Chair: Christian Himpe Sustainable research software 2:20pm - 2:40pm Sustainable development of research software 2:40pm - 3:00pm Integrating publication, software and data in simulation sciences 3:00pm - 3:20pm FAIR principles for research software and data in the area of computer-based simulation 3:20pm - 3:40pm Devising a new fluid dynamics solver based on generic mathematical software libraries 3:40pm - 4:00pm An automated performance evaluation framework for the Ginkgo software ecosystem |
MS4: Coupled problems in rotating machinery Location: HS 21 Chair: Wolfgang Seemann Chair: Aydin Boyaci Chair: Dominik Kern A mixed variational-based dynamic simulation method for fiber-reinforced continua in non-isothermal rotordynamical systems 2:20pm - 2:40pm Coupled effects of the rotor support at vibration based monitoring 2:40pm - 3:00pm First critical speed determination of a rotor via low-speed measurements 3:00pm - 3:20pm Non-linear vibrations in rotor systems with floating ring bearings induced by fluid structure interactions 3:20pm - 3:40pm Numerical analysis of fluid-film-cavitation on rotordynamic vibration and stability behavior 3:40pm - 4:00pm Some aspects of the impact of using foil bearings on rotor dynamics |
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| MS5: Input-to-state stability of distributed parameter systems Location: HS 01 Chair: Andrii Mironchenko Chair: Felix Schwenninger ISS and ISS-Lyapunov functions: an introductory overview 2:20pm - 2:40pm Input-to-state stability for nonlinearly boundary-controlled port-Hamiltonian systems 2:40pm - 3:00pm Optimal stabilization of flows by value function approximations 3:00pm - 3:20pm Strong input-to-state stability for infinite-dimensional linear systems 3:20pm - 3:40pm Stability and well-posedness for non-autonomous port-Hamiltonian systems 3:40pm - 4:00pm CANCELLED!! ISS small gain theorems for spatially invariant systems |
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| 4:00pm - 4:30pm |
Coffee Break Location: Festsaal, Hof 8, Student Space |
PS1: Poster Session Location: Kleiner Festsaal Chair: Rafael Reisenhofer Information about the GAMM student chapter Chemnitz A phase mixture model for martensitic steels Mixed frameworks and structure preserving integration for coupled electro-elastodynamics Topology and shape optimization with application to electrical machines Sparse recovery from superimposed non-linear measurements Adaptivity in model order reduction with proper orthogonal decomposition Structural and material optimization based on thermodynamic principles On symmetry group evolution in finite plasticity The condensed method: an efficient approach to investigate constitutive behaviors, phase transitions and high-cycle fatigue of polycrystalline ferroelectric, ferromagnetic or multiferroic materials A multiscale model of processes in the human liver Optimal inflow control in supply systems with uncertain demands History of logarithmic strain measures in nonlinear elasticity Model order reduction of multi-agent systems Unstructured T-splines based on local higher-dimensional mesh representations Blood damage estimation for medical device design Multiscale modeling of dual phase steels Structure-preserving model reduction for the advection-diffusion equation Data-driven modeling of systems with prescribed structure Shape optimization in shape spaces |
| 4:30pm - 6:30pm |
DFG-PP 1897.02: Calm, smooth and smart - novel approaches for influencing vibrations by means of deliberately introduced dissipation Location: HS 41 Chair: Peter Eberhard Parameter identification of brake pad shims for complex eigenvalue analysis 4:50pm - 5:10pm On the dynamics of a prestressed sliding wedge damper 5:10pm - 5:30pm Application of a variational higher order mixed shell theory towards understanding the deformation behavior of hybrid laminates 5:30pm - 5:50pm Identification of radiation damping from modal analysis of structural acoustic systems in unbounded domains 5:50pm - 6:10pm Overcoming directional damping limitation – investigation for two degree-of-freedom system |
DFG-PP 1962.02: Non smooth and complementarity-based distributed parameter systems: simulation and hierarchical optimization Location: HS 07 Chair: Michael Hintermüller Unique global solutions in PDE and VI-constrained optimization 5:10pm - 5:30pm Total variation of the normal as a prior in geometric inverse problems 5:30pm - 5:50pm Solving inverse optimal control problems to global optimality 5:50pm - 6:10pm Structure of subgradients for the obstacle problem and numerical realization 6:10pm - 6:30pm Numerical approximation of rate-independent evolutions |
| DFG-PP 2020.02: Cyclic deterioration of high-performance concrete in an experimental-virtual lab Location: HS 31 Chair: Johannes Storm DEM calibration for modelling of the fatigue behavior of ultra-high-performance concrete 4:50pm - 5:10pm Characterizing high performance concrete in the frequency domain: validation experiments 5:10pm - 5:30pm Influence of load-induced temperature on fatigue behaviour of UHPC |
S02.02: Biomechanics Location: HS 01 Chair: Tim Ricken Computational modeling of adhesive contact between a virus and a cell during receptor driven endocytosis 4:50pm - 5:10pm Continuum-mechanical modelling of apoptosis 5:10pm - 5:30pm Modeling the vesicle motion through the cytoplasm 5:30pm - 5:50pm CANCELLED!! Modelling cell motility as an active liquid crystal film with evolving free boundary 5:50pm - 6:10pm On the comparison of mechanical properties of milk fouling and whey protein isolate fouling using of indentation tests |
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| S03.02: Damage and fracture mechanics Location: HS 50 Chair: Tim Brepols A variational phase field model for ductile fatigue 4:50pm - 5:10pm Application of higher-order strain gradient theories in the phase-field modelling of fracture mechanics 5:10pm - 5:30pm Efficient phase-field modelling of fatigue crack propagation 5:30pm - 5:50pm On phase field modeling in the context of cyclic mechanical fatigue 5:50pm - 6:10pm Simulation of fatigue damage in power semiconductors subjected to transient thermo-mechanical loading |
S04.03: Structural mechanics Location: Audimax Chair: Manfred Bischoff A new approach to mixed methods for Reissner-Mindlin plates and shells 4:50pm - 5:10pm Reissner-Mindlin shell theory based on tangential differential calculus 5:10pm - 5:30pm The Hellan-Herrmann-Johnson method for nonlinear shells 5:30pm - 5:50pm A physically and geometrically nonlinear formulation for isogeometric analysis of solids in boundary representation 5:50pm - 6:10pm Imperfection sensitivity of ring and stringer stiffened cylinders |
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| S04.04: Structural mechanics Location: SR 04 Chair: Günter Hofstetter Modeling of NATM tunneling using a rock damage plasticity model 4:50pm - 5:10pm Numerical modeling of shotcrete and application to simulations of deep tunnel advance 5:10pm - 5:30pm Multiphase simulations of concrete overlays interacting with an existing substrate 5:30pm - 5:50pm Concrete hinges: experiments, simulations, and design considerations |
S05.02: Nonlinear oscillations Location: SR 06 Chair: Leo Dostal Influence of friction on the locomotion of soft robots 4:50pm - 5:10pm Vibrational influence on the friction forces during disk brake squeal 5:10pm - 5:30pm Bifurcations and limit cycles due to self-excitation in nonlinear systems with joint friction: initialization of isolated solution branches via homotopy methods 5:30pm - 5:50pm Modeling of the stick-slip motion of an oscillatory roller during soil compaction 5:50pm - 6:10pm On a simple nonlinear system with circulatory forces 6:10pm - 6:30pm Numerical simulation of vibro-impact problems using a massless boundary approach |
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| S06.02: Material modelling in solid mechanics Location: BIG HS Chair: Carina Nisters Crystal Plasticity
Gradient enhanced crystal plasticity in additive manufacturing: identification of a macroscopic yield criterion 4:50pm - 5:10pm A comparative study of integration algorithms for finite single crystal (visco-)plasticity 5:10pm - 5:30pm On the implementation of rate-independent gradient-enhanced crystal plasticity theory 5:30pm - 5:50pm Multi-level thermomechanical material modeling to study heterogeneous plastic deformation of DP600 steel and effects of residual stresses on its mechanical properties 5:50pm - 6:10pm Test-based development in material modeling 6:10pm - 6:30pm Small strain crystal plasticity based on the primal dual interior point method |
S07.02: Coupled problems Location: HS 21 Chair: Andreas Meister A least-squares finite element approach to model fluid-structure interaction problems 4:50pm - 5:10pm Thermo-mechanical fluid-structure interaction of thermal buckling 5:10pm - 5:30pm Numerical and experimental research on effect of constraint methods on welding residual stress and nanomechanical performance of aluminum AA5083 5:30pm - 5:50pm Discontinuous Galerkin method for incompressible two-phase flows 5:50pm - 6:10pm Using FEniCS and OpenFOAM for the simulation of conjugate heat transfer in a partitioned fashion 6:10pm - 6:30pm A Navier-Stokes-Korteweg model for dynamic wetting based on the PeTS equation of state |
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| S09.02: Laminar flows and transition Location: HS 03 Chair: Bruno Eckhardt Probing transition to turbulence and low-drag turbulent states in channel flow using wall shear stress signals 5:10pm - 5:30pm Power-law scaling of friction in pipe flow 5:30pm - 5:50pm Universality of the transition to turbulence in Couette flow 5:50pm - 6:10pm Percolation as a high-precision measurement tool for the laminar-turbulent boundary layer transition on an airfoil 6:10pm - 6:30pm Three-dimensional flow in a shear-driven cube |
S11.02: Interfacial flows Location: HS 02 Chair: Dirk Peschka Interfacial flows described by reduced models 5:10pm - 5:30pm Horizontal Faraday instability and parametric excitation in a circular channel 5:30pm - 5:50pm Observations of wave patterns affected by sub-surface shear currents 5:50pm - 6:10pm Thin liquid film formation on hemispherical and conical substrate |
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| S12.02: Waves and acoustics Location: HS 34 Chair: Barbara Kaltenbacher Adaptive discontinuous Galerkin methods for the Helmholtz equation 5:10pm - 5:30pm Covariant and contravariant complex stretching for time dependent wave propagation problem solved with discontinuous finite elements 5:30pm - 5:50pm An explicit Mapped Tent Pitching scheme for wave equations 5:50pm - 6:10pm New mass-lumped tetrahedral elements for 3D wave propagation modelling 6:10pm - 6:30pm L-sweeps: a scalable parallel high-frequency Helmholtz solver |
S13.02: Flow control Location: SR 07 Chair: Wolfgang Schröder External acoustic control of the laminar boundary layer separation over a circular cylinder 5:10pm - 5:30pm CANCELLED!! Aerodynamic drag reduction using trapped vorticity flow control 5:30pm - 5:50pm Perimetric blowing at the rear of a bluff body: consequences on the wake dynamics and drag reduction 5:50pm - 6:10pm Harnessing the Kelvin-Helmholtz instability: feedback stabilization of an inviscid vortex sheet |
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| S14.03: Applied analysis Location: HS 32 Chair: Patrick Dondl On the long time behavior of a tumor growth model 5:10pm - 5:30pm Analysis of a Cahn-Hilliard-Brinkman model for tumour growth with chemotaxis 5:30pm - 5:50pm Patterns and waves in nonlocal reaction-diffusion equations 5:50pm - 6:10pm Volume-surface reaction-diffusion systems arising from cell biology: analysis and numerics 6:10pm - 6:30pm On a Lotka-Volterra reaction-diffusion-ODE system with the superimposed interaction between two Neolithic populations |
S14.04: Applied analysis Location: SR 08 Chair: Ulisse Stefanelli $\epsilon$-expansion of constrained hyperbolic PDEs 4:50pm - 5:10pm Asymptotic analysis of the visco-acoustic equations for absorbing walls of arrays of Helmholtz resonators 5:10pm - 5:30pm Dimension reduction and homogenization of a linear elastic periodic shell 5:30pm - 5:50pm Thermodynamically consistent modelling and analysis of bulk-surface systems with sorption and surface chemistry 5:50pm - 6:10pm The quasiconvex envelope of conformally invariant planar energy functions 6:10pm - 6:30pm The fractional p-Laplacian emerging from discrete homogenization of the random conductance model with degenerate ergodic weights |
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| S15.02: Uncertainty quantification Location: HS 16 Chair: Hanno Gottschalk Adaptive sparse polynomial chaos expansions: a survey 4:50pm - 5:10pm An intrusive PCE extension of the Contour Integral Method and its application in electrical engineering 5:10pm - 5:30pm Formulation of a spectral stochastic finite element for problems with uncertain geometry 5:30pm - 5:50pm Model order reduction for linear stochastic Galerkin systems with moments as outputs 5:50pm - 6:10pm A higher order perturbation approach for electromagnetic scattering problems on random domains 6:10pm - 6:30pm Padé-based model order reduction for parametric/stochastic Helmholtz frequency response problems |
S17.02: Applied and numerical linear algebra Location: Elise-Richter HS Chair: Oliver Rheinbach Computational homogenization in EXASTEEL 4:50pm - 5:10pm EXASTEEL: developments in nonlinear and linear domain decomposition methods 5:10pm - 5:30pm FROSch - a parallel implementation of the GDSW domain decomposition preconditioner in Trilinos 5:30pm - 5:50pm A three-level GDSW overlapping Schwarz preconditioner 5:50pm - 6:10pm A time adaptive multirate Dirichlet-Neumann waveform relaxation method for heterogeneous coupled heat equations 6:10pm - 6:30pm Asynchronous time integration in structural mechanics |
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| S18.02: Numerical methods of differential equations Location: HS 06 Chair: Mario Ohlberger Tensor methods for the time-dependent Vlasov-Poisson system 5:10pm - 5:30pm A domain decomposition method for the Poisson-Boltzmann solvation model 5:30pm - 5:50pm Efficient numerical methods for nonlinear DAEs arising from gas transportation networks 5:50pm - 6:10pm Parallel tensor arithmetic in the Hierarchical Tucker format 6:10pm - 6:30pm A SDE waveform-relaxation method with application in distributed neural network simulations |
S19.02: Optimization of differential equations Location: HS 30 Chair: Kathrin Welker Shape optimization for interface identification with nonlocal system models 4:50pm - 5:10pm Numerical methods for optimal design in conductivity 5:10pm - 5:30pm Shape optimization in phosphate production 5:30pm - 5:50pm Shape optimization for high temperature processes |
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| S20.02: Dynamics and control Location: HS 05 Chair: Roman Geiselhart CANFIS based semi-active vibration control of stochastically excited high-rise civil engineering structures with nonlinearities and uncertainties 4:50pm - 5:10pm Control of structural displacements by eigenstrains in the presence of propagating singular waves: uni-axial motion 5:10pm - 5:30pm External vibration damping of a robot manipulator’s TCP using acceleration feedback 5:30pm - 5:50pm Mixed control of vibrational systems 5:50pm - 6:10pm Model-free adaptive control method applied to vibration reduction of a flexible crane as MIMO system |
S22.02: Scientific computing Location: HS 42 Chair: Hartwig Anzt IMEX-ODTLES: A multi-scale and stochastic approach for highly turbulent flows 4:50pm - 5:10pm Shape optimization with a one-way coupled Eulerian model for laminar particulate flow problems 5:10pm - 5:30pm Pressure Poisson equation for the stokes system 5:30pm - 5:50pm Algorithmic differentiation of an industrial airfoil design tool coupled with the adjoint CFD method 5:50pm - 6:10pm Accurate gradient computations for shape optimization via discrete adjoints in CFD-related multiphysics problems |
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| S23.02: Applied operator theory Location: SR 03 Chair: Jonathan Rohleder Everything is possible for the domain intersection of an operator and its adjoint 4:50pm - 5:10pm Essential spectrum of operator pencils 5:10pm - 5:30pm Friedrichs operators as dual pairs 5:30pm - 5:50pm On the Cafarelli-Silvestre extension approach to fractional powers in Banach spaces 5:50pm - 6:10pm The essential numerical range for unbounded linear operators 6:10pm - 6:30pm The Crouzeix conjecture and deformations of the numerical range. |
S24.01: History of mechanics and history, teaching and popularization of mathematics Location: SR 05 Chair: Otto T. Bruhns Science thriller: The dramatic destiny of Alexander Mohrenstein-Ertel and the history of elastohydrodynamics 5:10pm - 5:30pm August Wöhler - founder of fatigue strength 5:30pm - 5:50pm Palmgren, Gaßner and the challenges of fatigue at variable amplitudes 5:50pm - 6:10pm A brief historical tour of glacier ice on earth and its role in climate dynamics |
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| 7:30pm - 8:30pm |
Public Lecture on "Architectural geometry" Location: Audimax Chair: Joachim Schöberl |
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| Date: Wednesday, 20/Feb/2019 | ||
| 8:30am - 9:30am |
S02.03: Biomechanics Location: HS 01 Chair: Markus Böl CANCELLED!! Numerical simulation of viscoelastic effects during bubble-collapse driven tissue-penetration 8:50am - 9:10am A study on nanoparticle transport in a micro blood vessel 9:10am - 9:30am Validation study of computational fluid dynamics models of hemodynamics in the human aorta |
S03.03: Damage and fracture mechanics Location: HS 50 Chair: Ralf Müller Discretization approaches to model cutting mechanisms in single grit scratch processes with lagrangian, ALE and SPH formulations 8:50am - 9:10am Aspects of the particle finite element method applied to contact problems 9:10am - 9:30am Numerical realization and fracture behavior of defect-free two-domensional silica glass |
| S04.05: Structural mechanics Location: Audimax Chair: Ingo Münch Combining of the machine learning algorithm with the optimal transportation meshfree (OTM) method for metal cutting simulation 8:50am - 9:10am Artificial neural networks in structural dynamics 9:10am - 9:30am Pseudo-kinematic invariants – gems in FE structural analyses |
S05.03: Nonlinear oscillations Location: HS 16 Chair: Leo Dostal Invariant manifolds in control problems 9:10am - 9:30am Nonlinear stability analysis of an oversteer automobile |
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| S06.03: Material modelling in solid mechanics Location: BIG HS Chair: Clara Schuecker Fiber Composites I
An invariant-based formulation for transversely isotropic microsphere models with application to biomechanics 8:50am - 9:10am Material model of pulp fibres 9:10am - 9:30am Thermo-mechanical modeling of pre-consolidated fiber-reinforced plastics for the simulation of thermoforming processes |
S07.03: Coupled problems Location: HS 21 Chair: Arndt Wagner An energetically consistent heat input model for additive manufacturing 8:50am - 9:10am Simulation of multiphysical coupled Additive Manufacturing processes 9:10am - 9:30am Influence of electrodeposition parameters on the coating process on open porous media |
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| S07.04: Coupled problems Location: SR 07 Chair: Marc-Andre Keip Chemo-mechanical modeling of cathode particles of lithium-ion batteries 8:50am - 9:10am The interaction of bulk stresses, surface stresses, and diffusion in nanostructured electrodes for lithium-ion batteries 9:10am - 9:30am Structural optimization of electrically charged anodes |
S08.02: Multiscales and homogenization Location: HS 41 Chair: Lisa Scheunemann Molecular dynamics simulation of ultrasonic metal welding of aluminum alloys 8:50am - 9:10am Virtual testing of additively manufactured grid structures 9:10am - 9:30am Laser shock peening: modelling across scales |
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| S11.03: Interfacial flows Location: HS 02 Chair: Tatiana Gambaryan-Roisman Gradient structures for flows of concentrated suspensions - jamming and free boundaries 8:50am - 9:10am Particle accumulation in high-Prandtl-number liquid bridges |
S12.03: Waves and acoustics Location: HS 34 Chair: Barbara Kaltenbacher Towards space-time boundary element methods for retarded potential integral equations 8:50am - 9:10am Generalization of adaptive cross approximation for time-domain boundary element methods 9:10am - 9:30am BEM-simulation of tubes using thin elements |
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| S14.05: Applied analysis Location: HS 32 Chair: Ulisse Stefanelli $C^{1/5-\epsilon}$ weak solutions to the two dimensional Monge-Ampére equation 8:50am - 9:10am A degenerate Cahn-Hilliard model as constrained Wasserstein gradient flow 9:10am - 9:30am Sharp interface limit of a Stokes/Cahn-Hilliard system |
S15.03: Uncertainty quantification Location: HS 07 Chair: Hanno Gottschalk Sensitivity analysis for electrical detection of aortic dissection 8:50am - 9:10am On the calculation of a dry friction coefficient 9:10am - 9:30am Uncertainty quantification for optimal power flow problems |
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| S16.01: Experiment design Location: HS 06 Chair: Christian Kirches First-order methods for regularized optimal experimental design problems 8:50am - 9:10am Sensitivity analysis of elastoplastic structures and application to optimal specimen design 9:10am - 9:30am Oblique projections and optimal actuator placement |
S17.03: Applied and numerical linear algebra Location: Elise-Richter HS Chair: Oliver Rheinbach An algebraic multigrid method for linear elasiticity 8:50am - 9:10am Local Fourier analysis of multigrid smoothers for the Stokes problem 9:10am - 9:30am Parallel block-selective algebraic multigrid in foam-extend |
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| S18.03: Numerical methods of differential equations Location: HS 31 Chair: Ilaria Perugia A study of scaled boundary parametrizations in isogeometric analysis 8:50am - 9:10am Optimal enforcement of Dirichlet conditions on curvilinear boundaries for Lagrange and Hermite finite element methods with straight-edged simplexes 9:10am - 9:30am Unstructured T-splines based on local higher-dimensional mesh representations |
S19.03: Optimization of differential equations Location: HS 30 Chair: Markus Bause Approximation of the Riccati operator for closed loop parabolic control problems 8:50am - 9:10am A hybrid finite-dimensional RHC for stabilization of nonautonomous parabolic equations 9:10am - 9:30am On oblique projection based stabilizing feedback control for nonautonomous systems |
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| S20.03: Dynamics and control Location: HS 05 Chair: Roman Geiselhart Funnel control for linear non-minimum phase systems 8:50am - 9:10am Funnel control for boundary observation and control systems 9:10am - 9:30am Asymptotic tracking with funnel control |
S22.03: Scientific computing Location: HS 42 Chair: Hartwig Anzt Dynamic selection limiter schemes for high density gradient simulations of supersonic rarefied gas flows 8:50am - 9:10am Modeling and simulation of the aqueous humor flow in the anterior chamber 9:10am - 9:30am An accelerated boundary-domain integral method for three-dimensional fluid flow analysis |
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| S23.03: Applied operator theory Location: SR 06 Chair: Jonathan Rohleder Differential-algebraic operators and the Kronecker form 9:10am - 9:30am Around maximal regularity with respect to $L^\infty$ |
S24.02: History of mechanics and history, teaching and popularization of mathematics Location: SR 05 Chair: Dietmar Gross Reconstruction of the genesis of a renaissance algorithm to calculate sine tables 8:50am - 9:10am Using computer simulations in lectures in mathematics and in the natural sciences: learning-theoretical justifications |
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| 9:30am - 10:30am |
Coffee Break Location: Festsaal, Hof 8, Student Space |
PS2: Poster Session Location: Kleiner Festsaal |
| 10:30am - 11:30am |
RvML: Richard von Mises Lecture Location: Audimax, streaming to BIG HS |
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| 11:30am - 1:00pm |
GAMM General Assembly Location: BIG HS |
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| 1:00pm - 2:00pm |
Lunch Break |
YAMM Lunch Location: Kleiner Festsaal |
| 2:00pm - 4:00pm |
S01.01: Multi-body dynamics Location: SR 06 Chair: Michael Krommer Multibody modelling and experimental identification of wind turbines 2:40pm - 3:00pm Double magnus type wind turbine 3:00pm - 3:20pm On grasp based objectives in human grasping simulation 3:20pm - 3:40pm The Influence of foot geometry on the energy efficiency of models for bipedal walking 3:40pm - 4:00pm Biomechanical simulations with dynamic muscle paths on NURBS surfaces |
S02.04: Biomechanics Location: HS 01 Chair: Alexander E. Ehret Experimental micro- and nanomechanics of collagen rich-tissues and individual collagen fibrils 2:40pm - 3:00pm Continuous versus discrete modeling of fiber dispersion in fibrous soft tissues 3:00pm - 3:20pm A microstructural model of crosslink interaction between collagen fibrils in the human cornea 3:20pm - 3:40pm Key factors for soft tissue tensional homeostasis identified by discrete fiber network modeling and biaxial experiments 3:40pm - 4:00pm DNA beams: molecular-to-beam upscaling - theoretical foundations and application to DNA |
| S03.04: Damage and fracture mechanics Location: HS 50 Chair: Thomas Seelig A gradient-plasticity approach to model the interaction between dislocation pile-up and cleavage initiation during fracture 2:20pm - 2:40pm A gradient-extended damage-plasticity model for large deformations with nonlinear isotropic and kinematic hardening 2:40pm - 3:00pm Numerical investigation of wear processes by a gradient-enhanced damage-plasticity model 3:00pm - 3:20pm Extended finite element method and gradient-enhanced damage model for a 3D dynamic crack problem under cyclical loading 3:20pm - 3:40pm On the energetics of dynamic cohesive crack formation |
S04.06: Structural mechanics Location: Audimax Chair: Walter Zulehner Two novel Kirchhoff plate finite elements for the Modified Strain Gradient Theory 2:20pm - 2:40pm A rotation-free formulation of Mindlin's plate model 2:40pm - 3:00pm Rigorous amendment of Vlasov's theory for thin elastic plates on elastic Winkler foundations, based on the Principle of Virtual Power 3:00pm - 3:20pm An a-priori error estimate for the consistent approximation approach 3:20pm - 3:40pm Linear elastic plates under in-plane action: unified analytical solution procedure based on displacement unknowns 3:40pm - 4:00pm A closed-form analytical approach for stress concentrations at elliptical holes in moderately thick plates |
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| S04.07: Structural mechanics Location: SR 04 Chair: Peter Betsch Lattice Boltzmann simulation of the dynamic behavior of solids 2:20pm - 2:40pm Inverse dynamics of underactuated flexible mechanical systems 2:40pm - 3:00pm Comparison of different excitation strategies in Operational Modal Analysis (OMA) 3:00pm - 3:20pm Design optimization of joint parameters using the frequency based substructuring approach 3:20pm - 3:40pm The sudden release of a rod constrained by a sliding sleeve 3:40pm - 4:00pm On nullity of homogeneous linearized kinematic and equilibrium equations of the system of supported and connected rigid bodies |
S05.04: Nonlinear oscillations Location: HS 16 Chair: Katrin Ellermann Studies of lubricant flow and friction in partially filled gaps 2:20pm - 2:40pm Comparison of dry friction models for the computational analysis of refrigerant-lubricated GFB rotor systems 2:40pm - 3:00pm Numerical analysis of vibration patterns in hydropower units 3:00pm - 3:20pm Investigation of a centrifugal exciter with two coaxial unbalances on a carrier performing planar motion 3:20pm - 3:40pm Oscillations in a system of two coupled self-regulating pressure control valves with switching behaviour 3:40pm - 4:00pm A geometrical nonlinear model for rotating cylindrical shells |
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| S06.04: Material modelling in solid mechanics Location: BIG HS Chair: Clara Schuecker Fiber Composites II
Numerical prediction of the homogenized orthotropic linear viscoelastic material properties of composite plies and laminated composites 2:20pm - 2:40pm A constitutive model for fiber reinforced polymer plies - transition from hardening to softening behavior during anisotropic damage evolution 2:40pm - 3:00pm An anisotropic creep model for continuously and discontinuously fiber reinforced materials 3:00pm - 3:20pm FEM-simulation of the mechanical behavior of woven fabric composites using an anisotropic hyperelastic material model 3:20pm - 3:40pm Parameter identification for constitutive models of innovative textile composite materials using digital image correlation 3:40pm - 4:00pm Characterization of fiber matrix interface of continuous-discontinuous fiber reinforced polymers on the microscale |
S06.05: Material modelling in solid mechanics Location: SR 05 Chair: Helmut J. Böhm Dislocations
An analytical study on the role of misfit dislocations in fracture toughness enhancement of superlattice coatings 2:20pm - 2:40pm A framework and finite element formulation for incompatibility tensor-based gradient plasticity 2:40pm - 3:00pm Thermodynamic dislocation theory: torsion of bars 3:00pm - 3:20pm Thermodynamic dislocation theory of adiabatic shear banding in steel 3:20pm - 3:40pm Thermodynamic dislocation theory 3:40pm - 4:00pm Leaving the slip system - cross slip in continuum dislocation dynamics |
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| S07.05: Coupled problems Location: HS 21 Chair: Kerstin Weinberg Phase-field modeling of electro-mechanically induced fracturing of anisotropic electroceramics 2:40pm - 3:00pm Coupled physics solvers for analysing the magneto-thermal behaviour of a permanent magnet synchronous machines 3:00pm - 3:20pm Electromechanical coupling in neuron theory 3:20pm - 3:40pm Coupling nonlinear magneto-thermal problems in frequency domain with the mechanical field 3:40pm - 4:00pm Novel mixed finite elements for piezoelectric hysteresis modeling |
S08.03: Multiscales and homogenization Location: HS 41 Chair: Dennis M. Kochmann Modern non-linear solution techniques in FFT-based computational micromechanics 2:40pm - 3:00pm A model order reduction method for finite strain FFT solvers using a compressed sensing technique 3:00pm - 3:20pm An explicit solution of implicit single crystal small-strain viscoplasticity and its use in FFT-based micromechanics 3:20pm - 3:40pm Informed training with increasing fidelity: modeling dynamic recrystallization from Taylor to FFT-based Field Monte Carlo Potts 3:40pm - 4:00pm Preconditioning of the spectral Fourier method for homogenization of periodic media |
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| S09.03: Laminar flows and transition Location: HS 03 Chair: Tobias M. Schneider Transport of electrically charged particles in transonic and supersonic gas flows 2:20pm - 2:40pm Transformation of tribological modelling of squeeze flows to simulate the flow of highly viscous adhesives and sealants in manufacturing processes 2:40pm - 3:00pm Simulation of the flow behavior of wood-polymer composites in extrusion dies 3:00pm - 3:20pm Purely viscoelastic linear instability in plane Couette flow 3:20pm - 3:40pm A phase transition to condensate formation in two-dimensional turbulence |
S11.04: Interfacial flows Location: HS 02 Chair: Rodica Borcia Controlling sliding droplets with optimal contact angle distributions and a phase field model 2:20pm - 2:40pm Phase-field modeling of fluid-structure interaction 2:40pm - 3:00pm Numerical treatment of interfaces 3:00pm - 3:20pm An arbitrary Lagrangian-Eulerian formulation for fluid flow on evolving surfaces 3:20pm - 3:40pm The role of degenerate mobilities in Cahn-Hilliard models 3:40pm - 4:00pm Two-phase flow simulations for mold filling on 4D simplex space-time meshes |
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| S12.04: Waves and acoustics Location: HS 34 Chair: Manfred Kaltenbacher Cabin noise prediction using wave-resolving aircraft models 2:40pm - 3:00pm High-order shape functions for interior acoustics 3:00pm - 3:20pm Infinite elements for exterior Helmholtz resonance problems based on a frequency dependent complex scaling 3:20pm - 3:40pm Absorbing boundary conditions for nonlinear acoustics: the Westervelt equation 3:40pm - 4:00pm Extension of the method of generalized ray to sound propagation in a wedge-shaped layer of fluid over a slow-speed elastic bottom |
S13.03: Flow control Location: SR 07 Chair: Bernd Noack Parameter study of turbulent drag reduction by spanwise traveling tansversal surface waves 2:20pm - 2:40pm Cluster-based network model for drag reduction mechanisms of an actuated turbulent boundary layer 2:40pm - 3:00pm Drag reduction of transversal surface waves for swept flat plates 3:00pm - 3:20pm Turbulent dissipation in drag reduced flows 3:20pm - 3:40pm Turbulent drag reduction by compliant surface tension active wall layer 3:40pm - 4:00pm Flexible fibers in turbulent channel flow |
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| S14.06: Applied analysis Location: HS 32 Chair: Alexander Mielke Rate-independent processes with time-discontinuous data 2:20pm - 2:40pm Convergence of the Allen-Cahn equation to mean curvature flow with 90°-contact angle 2:40pm - 3:00pm Effective diffusion in thin structures via generalized gradient systems and EDP-convergence 3:00pm - 3:20pm Rate-independent evolution of sets & application to fracture processes 3:20pm - 3:40pm Non-uniqueness for the transport equation with Sobolev vector fields 3:40pm - 4:00pm Evolution of vector fields on flexible curves and surfaces |
S14.07: Applied analysis Location: SR 08 Chair: Ulisse Stefanelli Wellposedness of a piezoelectric partial differential equation system - analysis and application 2:20pm - 2:40pm Some regularity results for a non-isothermal Cahn-Hilliard model 2:40pm - 3:00pm CANCELLED!! Incorrect estimates by the four wave interaction (FWI) system for the Fermi-Pasta-Ulam (FPU) system 3:00pm - 3:20pm Controlled oscillations as a sufficient condition for pre-compactness in the space of R-valued Young measures 3:20pm - 3:40pm A Naghdi type shell model for irregular shells 3:40pm - 4:00pm Homogenization of the diffusion equation on plane mesh structures |
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| S15.04: Uncertainty quantification Location: HS 07 Chair: Hanno Gottschalk CANCELLED!! Scale switching computations for heterogeneous inelastic materials 2:20pm - 2:40pm Performing Monte-Carlo-based Dynamic Event Trees (MCDET) for probabilistic analysis of complex dynamic systems 2:40pm - 3:00pm Optimal bounds for the probability of failure of sheet metal forming processes of DP steel 3:00pm - 3:20pm Numerical methods for density driven groundwater flow with uncertain data 3:20pm - 3:40pm Uncertainty propagation in a reinforced concrete model with localised failure 3:40pm - 4:00pm Surrogate modelling for the global sensitivity analysis of problems with rapid local variations |
S16.02: Shape & material optimization I Location: HS 06 Chair: Christian Kirches Free material optimization of multilayer composite materials 2:20pm - 2:40pm Automatic shape optimization of a 180-degree elbow for pressure loss minimization 2:40pm - 3:00pm Controlling physical properties on interfaces using parametrised level set methods and extended finite element method 3:00pm - 3:20pm Calibration of model coefficients of an extended eddy viscousity turbulence model for vortical flows 3:20pm - 3:40pm Comprehensive optimization of frame structures 3:40pm - 4:00pm Load optimisation for air bending in the context of damage reduction |
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| S17.04: Applied and numerical linear algebra Location: Elise-Richter HS Chair: Alexander Heinlein Constructing algebraic preconditioners from domain decomposition 2:20pm - 2:40pm On a scalable, highly robust domain decomposition method with dynamic load balancing 2:40pm - 3:00pm Machine learning in adaptive domain decomposition methods - predicting the geometric location of constraints 3:00pm - 3:20pm Logistic regression for potential modeling 3:20pm - 3:40pm Large scale non-autonomous differential Riccati equations 3:40pm - 4:00pm Fast computation of optimal damping parameters for linear vibrational systems |
S18.04: Numerical methods of differential equations Location: HS 31 Chair: Ilaria Perugia Equivalence of local- and global-best approximations and simple stable local commuting projectors in H(div) 2:40pm - 3:00pm Fast diagonalized Schwarz smoothers for geometric multigrid preconditioning on unstructured meshes 3:00pm - 3:20pm Guaranteed a posteriori error analysis for the mixed Laplace eigenvalue problem 3:20pm - 3:40pm Analysis of a boundary element method for homogenization of periodic structures 3:40pm - 4:00pm On the numerical analysis of an integral equation formulation of the many-body dielectric problem in electrostatics |
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| S19.04: Optimization of differential equations Location: HS 30 Chair: Andrea Walther Sparse discretization of sparse control problems 2:20pm - 2:40pm Numerical approximation of optimal control problems for hyperbolic conservation laws 2:40pm - 3:00pm A priori error estimates for fracture control problem 3:00pm - 3:20pm Reduced basis methods -- an application to variational discretization of parametrized elliptic optimal control problems 3:20pm - 3:40pm Multigoal-oriented error control in optimization problems with nonlinear PDE constraints 3:40pm - 4:00pm Adaptive optimization of FSI problems with reduced order models |
S20.04: Dynamics and control Location: HS 05 Chair: Sergio Lucia Foundations and applications of infinite-dimensional input-to-state stability theory 2:40pm - 3:00pm An ISS characterization for discontinuous discrete-time systems 3:00pm - 3:20pm Optimal control of nonlinear dissipative systems 3:20pm - 3:40pm Tracking of non-feasible curves for underactuated nonlinear systems 3:40pm - 4:00pm A smooth start method for spherical robot based on sliding mode control |
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| S22.04: Scientific computing Location: HS 42 Chair: Philipp Birken Mean-field surrogate models of (semi-)dilute particle suspensions 2:20pm - 2:40pm Simulation of generalized Newtonian fluids with the smoothed particle hydrodynamics method 2:40pm - 3:00pm Parallel FE solver for the stationary Navier-Stokes equations with adaptive grid refinement using a PU dual-weighted residual method 3:00pm - 3:20pm Simulation of calcium waves in a heart cell on modern nulti-core parallel computing platforms 3:20pm - 3:40pm Analysis of acoustic wave propagation in composite laminates via a spectral element method 3:40pm - 4:00pm Parallel-in-time solution of eddy current problems |
S23.04: Applied operator theory Location: SR 03 Chair: Olaf Post Integration by parts on the law of the mdulus of the Brownian bridge 2:20pm - 2:40pm An agent based modeling of spatially inhomogeneous host-vector disease transmission 2:40pm - 3:00pm Homogenization of abstract evolutionary equations via unfolding 3:00pm - 3:20pm Quantitative unique continuation principles and application to control theory for the heat equation 3:20pm - 3:40pm The Tan 2Theta-theorem in fluid dynamics |
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| 4:00pm - 4:30pm |
Coffee Break Location: Festsaal, Hof 8, Student Space |
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| 4:30pm - 6:30pm |
S01.02: Multi-body dynamics Location: SR 06 Chair: Peter Betsch Improved initialization schemes for the time integration of constrained systems 4:50pm - 5:10pm A formulation for the dynamic analysis of multibody systems using non-redundant unified local velocity coordinates 5:10pm - 5:30pm On mechanical DAE systems within the framework of optimal control 5:30pm - 5:50pm Utilizing general relations of balance for the improvement of discrete mechanics time integration schemes: application to the double pendulum 5:50pm - 6:10pm Variational formulation and discretization of multi-body systems with fluid-structure interaction at low Reynolds number |
S02.05: Biomechanics Location: HS 01 Chair: Sebastian Brandstäter Computational study of ventricular fibrillation by considering a strongly coupled electromechanical rat heart model 4:50pm - 5:10pm On the electro-chemo-mechanical modelling of stomach smooth muscle contraction 5:10pm - 5:30pm Active-strain electromechanics for the computational modelling of gastric peristalsis 5:30pm - 5:50pm Simulating electromechanical delay by using a multi-scale model of the muscle-tendon complex 5:50pm - 6:10pm Towards overcoming the bottleneck of optimizing control parameters in finite element active human body models 6:10pm - 6:30pm A cable model for accurate and efficient forward-dynamic musculoskeletal system simulation |
| S03.05: Damage and fracture mechanics Location: HS 50 Chair: Andreas Ricoeur Identifying the non-local interactions of self-adhesive polymeric films with digital images of T-peeling 4:50pm - 5:10pm J-integral and cohesive zones of mixed-mode interface and matrix cracks 5:10pm - 5:30pm A finite fracture mechanics approach for interlaminar crack initiation using the scaled boundary finite element method 5:30pm - 5:50pm Implementation of generalized mechanical interfaces 5:50pm - 6:10pm An interface model to account for damage and plasticity at grain boundaries |
S04.08: Structural mechanics Location: Audimax Chair: Sven Klinkel Topology optimization combined with element-by-element solution techniques 4:50pm - 5:10pm Topology optimization with geometrical nonlinearity responding to uncertain loading 5:10pm - 5:30pm Redundancy distribution in structures 5:30pm - 5:50pm A variational formulation for motion design of adaptive structures 5:50pm - 6:10pm Phase field modeling with IGA and FEM: Error surveillance in the transition zone 6:10pm - 6:30pm Topology optimization with isogeometric analysis and phase field modeling |
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| S04.09: Structural mechanics Location: SR 04 Chair: Franz-Joseph Barthold Prediction of stress states in tramway rails by means of a principle of virtual power-based, enhanced beam theory approach 4:50pm - 5:10pm Role of diameter and percentage of SMA bars as reinforcement in strength and residual displacement of concrete beams 5:10pm - 5:30pm Effect of uncertain parameters on the deflection of beams 5:30pm - 5:50pm Non-material finite element rod model for out-of-plane bending of an elastic strip with natural curvature 5:50pm - 6:10pm CANCELLED!! Comparison of performance and accuracy of the FETI-methods and a direct sparse FE-solver for truss structures 6:10pm - 6:30pm Shape memory alloy truss lattice material |
S05.05: Nonlinear oscillations Location: HS 16 Chair: Leo Dostal CANCELLED!! Aeroelastic limit-cycle oscillations of piezoelectric energy harvesters 4:50pm - 5:10pm A time-integration algorithm for non-linear dynamic systems of first and second order 5:10pm - 5:30pm Bouc hysteresis without an elastic restoring force under white noise excitation using the beta distribution 5:30pm - 5:50pm Dynamical characteristics of electromechanical energy dissipation due to translatory motion: a minimal example 5:50pm - 6:10pm Steady state dynamics of pre-stressed, piezoelectrically excited circular plates – a harmonic balance approach 6:10pm - 6:30pm Experimental nonlinear modal analysis of structures with nonlinear dissipation |
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| S06.06: Material modelling in solid mechanics Location: BIG HS Chair: Melanie Todt Fiber Composites III
Constitutive modelling of woven fiber reinforced polymer 4:50pm - 5:10pm Multiscale modeling and optimization of braid-reinforced polymer coil springs 5:10pm - 5:30pm Multiscale modeling of viscoelastic behavior of braid-reinforced polymer components 5:30pm - 5:50pm Orthotropic hyperelastic energy functions for the geometrically nonlinear simulation of textile membrane structures 5:50pm - 6:10pm Invariant formulation of anisotropic plasticity for fiber-reinforced composites: rate-type models with anisotropic, non-linear kinematic hardening |
S06.07: Material modelling in solid mechanics Location: SR 05 Chair: Thomas Antretter Thermo-elasto-plasticity I
Modelling ductile damage and fracture in extrusion-formed thin-walled aluminium components 4:50pm - 5:10pm A comparison between the performance of different Mindlin's theory based strain gradient models in local singularities 5:10pm - 5:30pm A new anisotropic hyperelastic material model for single layer blue phosphorus 5:30pm - 5:50pm Prandtl-Reuss model without safe-load conditions 5:50pm - 6:10pm Automatic analysis of the stress-strain response of rheological models |
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| S07.06: Coupled problems Location: HS 21 Chair: Anne Jung Phase-field simulations of cracks under dynamic loading 4:50pm - 5:10pm Modeling of hydraulically induced fractures in elastic-plastic solids 5:10pm - 5:30pm Hydro-mechanics of fluid-filled fractures - a discussion of numerical coupling schemes 5:30pm - 5:50pm A method on aerodynamic load transfer to the flexible car-body of high speed train |
S08.04: Multiscales and homogenization Location: HS 41 Chair: Marc-Andre Keip Computational finite strain homogenization: reduced basis methods and beyond 5:10pm - 5:30pm An artificial neural network based solution scheme to periodic homogenization 5:30pm - 5:50pm Application of a machine learning and data mining approach to determine relationships in materials science 5:50pm - 6:10pm Adaptivity in reduce order computational homogenization using neural networks 6:10pm - 6:30pm CANCELLED!! Computational runtime acceleration within TPM² environment |
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| S10.01: Turbulence and reactive flows Location: HS 03 Chair: Arne Scholtissek Pulverised fuel flames: fully-resolved and Euler-Lagrange simulations 5:10pm - 5:30pm Adjoint-based sensitivity analysis of complex combustion models 5:30pm - 5:50pm Large-scale quasi-DNS of mixed-mode turbulent combustion 5:50pm - 6:10pm Hierarchical parcel swapping: an efficient mixing model for turbulent reactive flows 6:10pm - 6:30pm Towards an understanding of finite-difference truncation errors through the lens of sparse regression |
S11.05: Interfacial flows Location: HS 02 Chair: Michael Bestehorn Effects of fluid rheology and wetting properties on the droplet motion by a shear flow 4:50pm - 5:10pm Modelling of shear driven drop motion and groove interaction on smooth rigid substrates 5:10pm - 5:30pm A novel two-step model to investigate turbulent gas flows shearing thin liquid films 5:30pm - 5:50pm Numerical investigation of the liquid-jet formation during water-hammer experiments 5:50pm - 6:10pm Effect of a rotating magnetic field on the decay of a free-falling metal jet |
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| S12.05: Waves and acoustics Location: HS 34 Chair: Piotr Borejko Comparison of different models for stress singularities in higher order finite element methods for elastic waves 4:50pm - 5:10pm Spectral super elements for beams with arbitrary cross section 5:10pm - 5:30pm Intersection of two elastic waves in the region of material nonlinearity in an elastic layer 5:30pm - 5:50pm Numerical study of nonlinear elastic wave propagation in locally damaged engineering structures 5:50pm - 6:10pm An analytical approach for assessing wave scattering by pipelines in irregularly compacted soil 6:10pm - 6:30pm Green’s function for a horizontally layered anisotropic soil |
S13.04: Flow control Location: SR 07 Chair: Wolfgang Schröder Temporal prediction horizons of adjoint calculations in turbulent flow 4:50pm - 5:10pm Adjoint based topology optimization of a duct bend 5:10pm - 5:30pm A numerical RANS-based model of a nanosecond pulsed plasma actuator for flow control over an airfoil |
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| S14.08: Applied analysis Location: HS 32 Chair: Ulisse Stefanelli Homogenization of high-contrast Mumford-Shah energies 4:50pm - 5:10pm Homogenization of linear elasticity with slip-displacement conditions 5:10pm - 5:30pm Homogenization of one-dimensional discrete optimal transport 5:30pm - 5:50pm Homogenization result for a solid-solid phase transformations model 5:50pm - 6:10pm Quantitative stochastic homogenization: recent advances and perspectives 6:10pm - 6:30pm Transmission, reflection, and refraction at meta-material interfaces |
S15.05: Uncertainty quantification Location: HS 07 Chair: Hanno Gottschalk Multifidelity reliability estimation 4:50pm - 5:10pm Stochastic multi-level analysis of bone tissue 5:10pm - 5:30pm Bayesian inversion for electrical impedance tomography 5:30pm - 5:50pm Bayesian analysis for Poisson-Boltzmann equation modeling electrical impedance tomography devices 5:50pm - 6:10pm Parameter estimation in a macroscopic production model based on a PDMP 6:10pm - 6:30pm Bayesian inversion for nanoscale field-effect sensors using the stochastic drift-diffusion-Poisson-Boltzmann system |
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| S16.03: Shape & material optimization II Location: HS 06 Chair: Tom Lahmer Metamodel assisted optimization of glued laminated timber beams by using metaheuristic algorithms 4:50pm - 5:10pm Shape optimization of bridge decks considering the Vortex-induced vibration phenomena 5:10pm - 5:30pm Structural and material optimization based on thermodynamic principles 5:30pm - 5:50pm Intrinsic formulation of KKT conditions and constraint qualifications on smooth manifolds. 5:50pm - 6:10pm Composite step method for optimization of equality constrained problems on manifolds 6:10pm - 6:30pm Geometry processing problems using the total variation of the normal vector field |
S17.05: Applied and numerical linear algebra Location: Elise-Richter HS Chair: Martin Lanser Numerical behavior of GMRES for singular systems 4:50pm - 5:10pm Oblique projections in deflating GMRES type methods 5:10pm - 5:30pm CANCELLED!! Augmentation of Krylov subspaces for Lyapunov equations 5:30pm - 5:50pm Shifted block FOM with restarts and low-rank modifications 5:50pm - 6:10pm Approximation of the trace of matrix functions based on decay bounds 6:10pm - 6:30pm Automated local Fourier analysis (aLFA) |
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| S18.05: Numerical methods of differential equations Location: HS 31 Chair: Mario Ohlberger A nonconforming Trefftz virtual element method for the fluid fluid interface problem 5:10pm - 5:30pm Resonance problems in waveguides with backward propagating modes 5:30pm - 5:50pm A beam propagation method for perturbated Gaussian beams 5:50pm - 6:10pm On the computation of localized Schrödinger eigenstates 6:10pm - 6:30pm Localized Orthogonal Decomposition for the wave equation |
S18.06: Numerical methods of differential equations Location: SR 08 Chair: Ilaria Perugia hp-FEM for the spectral fractional Laplacian in polygons 5:10pm - 5:30pm A reduced basis method for fractional diffusion operators 5:30pm - 5:50pm Exponential convergence of an hp-FEM approximation for parabolic fractional diffusion 5:50pm - 6:10pm Numerical homogenization of heterogeneous fractional Laplacians 6:10pm - 6:30pm Optimal adaptivity and preconditioning for the fractional Laplacian |
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| S19.05: Optimization of differential equations Location: HS 30 Chair: Martin Siebenborn Finite element error estimates in $L^2(\Omega)$ for regularized discrete approximations to the obstacle problem 4:50pm - 5:10pm A model problem for optimal control of a parabolic PDE fully coupled to ODEs 5:10pm - 5:30pm A priori error estimates for an optimal control problem governed by a variational inequality of the second kind 5:30pm - 5:50pm Numerical analysis for parabolic time-optimal control problems with bang-bang controls |
S20.05: Dynamics and control Location: HS 05 Chair: Roman Geiselhart Approximation of output-feedback robust model predictive controllers via deep learning 4:50pm - 5:10pm Specialized adaptive algorithms for the model predictive control of PDEs 5:10pm - 5:30pm Vision- and MPC-based control of a power-cube serial robot 5:30pm - 5:50pm Optimal control of differential-algebraic system using regularization techniques 5:50pm - 6:10pm Model predictive control for linear differential-algebraic equations based on regularisation 6:10pm - 6:30pm Cycle-based adaption of a model-predictive control strategy for injection molding machines |
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| S21.01: Mathematical signal and image processing Location: SR 02 Chair: Clemens Kirisits Numerical algorithms for stabilised backward image evolutions 5:10pm - 5:30pm Riemannian structure and flows for smooth geometric image labeling 5:30pm - 5:50pm Geometric numerical integration of the assignment flow 5:50pm - 6:10pm Generalised quantiles for multivariate images 6:10pm - 6:30pm A method for image decomposition and particle quantification |
S22.05: Scientific computing Location: HS 42 Chair: Hartwig Anzt Computational aspects of a bound of Lagrange 4:50pm - 5:10pm A performance comparison of different shell elements for upper bound limit analysis 5:10pm - 5:30pm Partitioned adaptive multirate time integration for coupled systems of ODEs 5:30pm - 5:50pm Simulating coupled free and porous media flow with lattice Boltzmann methods 5:50pm - 6:10pm A modified lattice Boltzmann formulation with adaptive numerical dissipation through independent control over higher-order moments 6:10pm - 6:30pm Discontinuous Galerkin methods with new multigrid preconditioners |
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| S23.05: Applied operator theory Location: SR 03 Chair: Jonathan Rohleder Perturbation of positive semigroups 4:50pm - 5:10pm Orthogonality and selfadjointness for extensions of inner products 5:10pm - 5:30pm Riesz bases and controllability for port-Hamiltonian systems 5:30pm - 5:50pm Solvability of the inhomogeneous Cauchy-Riemann equation for weighted smooth vector-valued functions |
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| 7:30pm - 10:30pm |
Conference Dinner Location: Rathaus |
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| Date: Thursday, 21/Feb/2019 | ||
| 8:30am - 10:30am |
S01.03: Multi-body dynamics Location: HS 16 Chair: Alois Steindl Consistent Euler-Lagrange approach for particulate flow modelling with arbitrary particle size/mesh resolution ratio 8:50am - 9:10am An IGA-based three dimensional Cosserat rod for multibody dynamics 9:10am - 9:30am Nodal-displacement-based derivation of the floating frame of reference formulation: avoiding inertia shape integrals 9:30am - 9:50am Model order reduction of structures with fractional viscoelastic coupling 9:50am - 10:10am A new approach for the simulation of flexible multibody systems and its relation to existing ones |
S02.06: Biomechanics Location: HS 01 Chair: Marcus Stoffel Parametric investigation of permeability of vertebral bone assuming a regular microstructure 8:50am - 9:10am Multiscale modeling provides differentiated insights to fluid flow-driven stimulation of bone cellular activities 9:10am - 9:30am Numerical simulation of function-perfusion processes in the human liver using the theory of porous media 9:30am - 9:50am On osmotic pressure and damage in hyperelastic biphasic fiber reinforced articular cartilage 9:50am - 10:10am Stability of crack growth in anisotropic materials at finite strains 10:10am - 10:30am Quantification of microdamage formation during fatigue testing of individual trabeculae |
| S03.06: Damage and fracture mechanics Location: HS 50 Chair: Thomas Seelig A computational framework for brittle crack-propagation based on efficient virtual element method 8:50am - 9:10am Crack paths in ferroelectrics: crack growth simulation and experiments 9:10am - 9:30am Micromechanical simulation of crack growth resistance curve in ferroelectrics 9:30am - 9:50am Mixed-mode fracture: the missing link between J-vector criterion and conventional fracture criteria 9:50am - 10:10am Scaled boundary finite element l modelling of thermally induced crack propagation 10:10am - 10:30am Crack propagation using incompatible modes in structural elements |
S04.10: Structural mechanics Location: Audimax Chair: Anton Tkachuk Structure-preserving integrators for discrete mechanical systems subject to general holonomic constraints 8:50am - 9:10am GENERIC consistent discretisation in space and Energy-Momentum-Entropy consistent schemes for open thermomechanical systems 9:10am - 9:30am An alternative conservative/dissipative time integration scheme for nonlinear mechanical systems 9:30am - 9:50am Mixed frameworks and structure preserving integration for coupled electro-elastodynamics 9:50am - 10:10am A numerical approach for dynamic analysis of solids in boundary representation 10:10am - 10:30am Time-adaptive computations for the mortar finite element method |
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| S04.11: Structural mechanics Location: SR 04 Chair: Alexander Popp Model order reduction of a modular scale model of a high rise building 8:50am - 9:10am Numerical investigation of the movements of lapping particles 9:10am - 9:30am Effects of a temperature cycle on a rotating shrink fit with FGM-hub 9:30am - 9:50am Investigation of elastic grinding pins 9:50am - 10:10am Development of a simulation model for the automatic optimization of tools for multi-dimensional tube forming |
S05.06: Nonlinear oscillations Location: SR 06 Chair: Katrin Ellermann Modeling and simulation of metal bellows in vacuum interrupters 8:50am - 9:10am Nonlinear thermomechanical vibrations of bimodular beams 9:10am - 9:30am Nonlinear responses of metastructures with bistable attachments |
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| S06.08: Material modelling in solid mechanics Location: BIG HS Chair: Christian Hellmich Rubber / Polymers
Strain induced crystallization and fracture of rubber-like materials 8:50am - 9:10am Hyperelastic modelling and experimental characterisation of cellular rubber 9:10am - 9:30am Application of different plasticity models to PC/ABS blends within a micromechanical unit cell approach 9:30am - 9:50am Experimental investigation, modelling and simulation of the DLO-effect using the example of thermo-oxidatively aged nitrile rubber 9:50am - 10:10am A phase field model for thermo-oxidative aging in cracked polymers 10:10am - 10:30am Gibbs potential-based thermodynamics of rubber viscosity and viscoelasticity at large strains |
S06.09: Material modelling in solid mechanics Location: SR 05 Chair: Kerstin Weinberg Thermo-elasto-plasticity II
Computational modelling of inertia friction welding 8:50am - 9:10am Thermo-mechanical analysis of a steam turbine rotor 9:10am - 9:30am Effect of crystallographic orientation in modelling of anisotropic plasticity with an analytical yield function 9:30am - 9:50am Numerical analysis of residual stresses on microscale and mesoscale in hot bulk forming parts under specific cooling 9:50am - 10:10am On predictive modelling of yield stress increase in fresh cement paste 10:10am - 10:30am Mixed XFEM formulation for the simuation of heterogeneities including elasto-plastic material behaviour |
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| S07.07: Coupled problems Location: HS 21 Chair: Björn Kiefer High-order numerical methods for the thermal activation of SMA fibers 9:10am - 9:30am 3D virtual elements for finite strain thermo-plasticity 9:30am - 9:50am Coupled boundary elements and finite elements for applications in thin structures 9:50am - 10:10am Lagrangian perspective on multi-scale skeletal muscle models 10:10am - 10:30am Ingredients for advanced blood damage estimation of medical devices: log-morph with variational multiscales |
S07.08: Coupled problems Location: SR 07 Chair: Ralf Jänicke Towards multifield discrete element modeling of concrete structures 8:50am - 9:10am High-performance computational modelling of concrete ageing 9:10am - 9:30am Formulation and calibration of a desorption isotherm for maturing concrete 9:30am - 9:50am Computational modeling of drying shrinkage in early-age concrete 9:50am - 10:10am Particle finite element simulation of fresh cement pastes - inspired by additive manufacturing techniques 10:10am - 10:30am Modeling of active multiphase materials |
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| S08.05: Multiscales and homogenization Location: HS 41 Chair: Helmut J. Böhm Simulation of dual-phase steel using the finite cell method and voxel-based microstructure data 8:50am - 9:10am Goal-oriented adaptivity on mean-field and full-field homogenization methods considering hierarchical unit cells 9:10am - 9:30am Homogenization of cementitious materials: stiffness, creep, strength 9:30am - 9:50am Multiscale analysis of heterogeneous materials in boundary representation 9:50am - 10:10am Influence of specific core reinforcement designs on the stiffness behaviour of hybrid core sandwich panels 10:10am - 10:30am Laminate-based modeling of semicrystalline polymers |
S10.02: Turbulence and reactive flows Location: HS 03 Chair: Bettina Frohnapfel Phase-field simulations of turbulent two-phase flows 9:10am - 9:30am Direct numerical simulation of flow over rough walls 9:30am - 9:50am Turbulence measurements in high-speed flows with a new Stereo-Dual-PIV system 9:50am - 10:10am Harmonic and pulsatile flow in an aortic aneurysm model: experiments and simulations |
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| S11.06: Interfacial flows Location: HS 02 Chair: Marco De Paoli Heat transfer modeling of confined bubble evaporation in a microchannel 8:50am - 9:10am The curvature of an evaporating meniscus in a pressure driven flow through cyindrical pores 9:10am - 9:30am The capillary rise as a benchmark for DNS wetting simulations 9:30am - 9:50am The contact line advection problem 9:50am - 10:10am Numerical simulation of suction cavitation in hydrodynamic journal bearings 10:10am - 10:30am Choking and hydraulic jumps in laminar flow |
S12.06: Waves and acoustics Location: HS 34 Chair: Florian Toth Steady transonic dense gas flow past compression/expansion ramps revisited 8:50am - 9:10am Multiple scales analysis of the undular hydraulic jump over horizontal surfaces 9:10am - 9:30am Growth and decay of waves in countercurrent air-water turbulent flows 9:30am - 9:50am Stationary single waves in turbulent free-surface flows 9:50am - 10:10am Analysis of sound generation of sub- and super-sonic boundary layer flows 10:10am - 10:30am Advanced finite element formulation for viscothermal acoustics |
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| S14.09: Applied analysis Location: HS 32 Chair: Patrick Dondl Crystallization and discrete differential geometry 9:10am - 9:30am A dipolar Gross-Pitaevskii equation with quantum fluctuations: self-bound states 9:30am - 9:50am Crystallization in the hexagonal lattice for ionic dimers 9:50am - 10:10am Coupled self-organized hydrodynamics and Stokes models for suspensions of active particles 10:10am - 10:30am Continuum limit and homogenization of stochastic and periodic discrete systems - fracture in composite materials |
S15.06: Uncertainty quantification Location: HS 07 Chair: Hanno Gottschalk Multilevel and Multi-index Monte Carlo methods for the McKean-Vlasov equation 9:10am - 9:30am Higher-order methods for stochastic differential equations 9:30am - 9:50am Well posedness and convergence analysis of the ensemble Kalman inversion 9:50am - 10:10am Data assimilation using random set models: applications to dynamical system estimation 10:10am - 10:30am Probabilistic numerics and randomised Bayesian inverse problems |
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| S16.04: MPEC and multilevel optimization Location: HS 06 Chair: Christian Clason A complementarity-based approach to cardinality-constrained optimization 9:10am - 9:30am A multi-leader-multi-follower Nash game with application in gas markets 9:30am - 9:50am Multi-leader-single-follower games with unique lower level solution in function space 9:50am - 10:10am Optimal control problems with control complementarity constraints 10:10am - 10:30am Gradient-based solution algorithms for a class of bilevel optimization and optimal control problems with a non-smooth lower level |
S17.06: Applied and numerical linear algebra Location: Elise-Richter HS Chair: Martin Kühn Approximating with random rank-one vectors 8:50am - 9:10am Approximate interpolation of high dimensional, scattered data in tree tensor formats 9:10am - 9:30am Hybrid compression of high-frequency Helmholtz integral operators 9:30am - 9:50am An algorithm for computing the restricted singular value decomposition with improved robustness 9:50am - 10:10am A low-rank tensor method for optimal control of fractional PDEs 10:10am - 10:30am Block partitioning of sparse rectangular matrices |
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| S18.07: Numerical methods of differential equations Location: HS 31 Chair: Ilaria Perugia Multiscale methods for electromagnetic wave propagation in media with high contrast 9:10am - 9:30am Space-time methods for Maxwell's equations 9:30am - 9:50am A hybrid WKB-based method for Schrödinger scattering problems in the semi-classical limit 9:50am - 10:10am Inf-sup stable space-time variational formulations for the second order wave equation |
S18.08: Numerical methods of differential equations Location: SR 08 Chair: Mario Ohlberger Differentiable mappings for finite element meshes 8:50am - 9:10am A second order multipoint flux mixed finite element method on hybrid meshes 9:10am - 9:30am Anisotropic mesh adaptation: from crack propagation to topology optimization 9:30am - 9:50am Two-grid hp-version DGFEM for second-order quasilinear elliptic PDEs with agglomerated coarse meshes 9:50am - 10:10am Symbolic evaluation of hp-FEM element matrices on simplices 10:10am - 10:30am Mixed explicit implicit schemes for embedded boundary geometries |
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| S19.06: Optimization of differential equations Location: HS 30 Chair: Winnifried Wollner Optimal control of a rate-independent system constrained to balanced viscosity solutions 8:50am - 9:10am Solving quadratic multi-leader-follower games by smoothing the follower’s best response 9:10am - 9:30am Optimal control of an abstract evolution variational inequality with application in homogenized plasticity 9:30am - 9:50am CANCELLED!! On a PDE-constrained generalized Nash equilibrium problem with various multipliers 9:50am - 10:10am Exploitation of nonsmoothness in PDE-constrained problems instead of regularization 10:10am - 10:30am A bilevel approach for parameter learning in inverse problems |
S20.06: Dynamics and control Location: HS 05 Chair: Roman Geiselhart Optimal periodic control of nonlinear chemical reactions with a time-varying flow rate 8:50am - 9:10am Optimal control of district heating systems 9:10am - 9:30am Coordinate-invariant linear quadratic control 9:30am - 9:50am Adjoint sensitivity equations in optimal control of differential-algebraic equations 9:50am - 10:10am Optimal feed forward control of hydraulic drive systems with long pipelines 10:10am - 10:30am Feedback and feedforward control concepts to improve road holding for passenger cars |
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| S21.02: Mathematical signal and image processing Location: SR 02 Chair: Clemens Kirisits Deblurring and denoising using Tikhonov functionals with imperfect forward operators and epsilon-insensitive distances 8:50am - 9:10am Musical instrument separation on shift-invariant spectrograms via stochastic dictionary learning 9:10am - 9:30am Unsupervised Label Learning on Manifolds by Geometric Assignment 9:30am - 9:50am Extraction of wavefront sets by deep convolutional neural networks and shearlets 9:50am - 10:10am The mismatch principle: statistical learning under large model uncertainties 10:10am - 10:30am Dimension reduction in learning tasks |
S22.06: Scientific computing Location: HS 42 Chair: Jens Saak On empirical system Gramians 8:50am - 9:10am Criss-cross algorithms for computing the spectral value set abscissa and radius 9:10am - 9:30am Accelerated computation of the matrix disc function via Direct Acyclic Graph Scheduling 9:30am - 9:50am Adaptive space-time isogeometric analysis of parabolic initial-boundary value problems 9:50am - 10:10am An eigensolver for the Hermitian Dirac operator with multigrid acceleration |
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| 10:30am - 11:00am |
Coffee Break Location: Festsaal, Hof 8, Student Space |
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| 11:00am - 12:00pm |
PL4: Plenary Lecture 4 Location: Audimax, streaming to BIG HS Chair: Dorothee Knees Modeling and simulation of transport processes at fluid interfaces |
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| 12:00pm - 1:00pm |
PL5: Plenary Lecture 5 Location: Audimax, streaming to BIG HS Chair: Jörg Schröder Mechanical metamaterials |
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| 1:00pm - 2:00pm |
Lunch Break |
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| 2:00pm - 4:00pm |
S01.04: Multi-body dynamics Location: HS 16 Chair: Robert Winkler A model-based strategy for safety assessment of a robot arm interacting with humans 2:20pm - 2:40pm Kino-geometric modeling: insights into protein molecular mechanisms 2:40pm - 3:00pm Optimal planning and control of a Segway model taking into account spatial obstacles 3:00pm - 3:20pm Inverse dynamics of an industrial robot using motion constraints 3:20pm - 3:40pm CANCELLED!! Numerical calculations of transient states taking into the consideration the friction in joints of medical robot using the FEM 3:40pm - 4:00pm Time-optimal control of a vehicle on a race track using a Pacejka tire model |
S02.07: Biomechanics Location: HS 01 Chair: Alexander E. Ehret Medical images registration with finite elements and mechanical regularization 2:40pm - 3:00pm Data-driven constitutive modeling of patient-specific cartilaginous tissue 3:00pm - 3:20pm CANCELLED!! Validation of aortic wall motion measurement by 4D ultrasound and effects of measurement uncertainty on inverse identificaion of the wall’s constitutive behavior 3:20pm - 3:40pm An efficient solver for CT based nonlinear microFE simulations of trabecular structures 3:40pm - 4:00pm Histology-based semi-automated 3D reconstruction and simulation of skeletal muscle tissue |
| S03.07: Damage and fracture mechanics Location: HS 50 Chair: Thomas Böhlke Mechanical microstructure characterization of discontinuous-fiber reinforced composites by means of experimental-numerical micro tensile tests 2:20pm - 2:40pm Numerical analysis of the thermally induced damage in remote laser cut carbon fiber reinforced polymers 2:40pm - 3:00pm Development and validation of a virtual process chain for sheet molding compound composites 3:00pm - 3:20pm Development of a novel damage approach on the microstructure for modelling woven Ceramic Matrix Composites 3:20pm - 3:40pm Verification and validation of a 2D energy based peridynamic state-based failure criterion 3:40pm - 4:00pm Computationally effective spot-weld fatigue life estimation for vehicle components |
S04.12: Structural mechanics Location: Audimax Chair: Renate Sachse A proper symplectic decomposition for inelastic shells 2:20pm - 2:40pm Towards the incorporation of damage into solid-shells based on reduced integration 2:40pm - 3:00pm On boundary conditions and constraints for representative volume elements of a two-scale shell formulation 3:00pm - 3:20pm Coulomb dry friction contact in a non-material shell finite element model for axially moving endless steel belts 3:20pm - 3:40pm Structural mechanics of endovascular stent grafts 3:40pm - 4:00pm Impact of thin walled square aluminum tubes |
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| S04.13: Structural mechanics Location: SR 04 Chair: Junji Kato Specimen design for extreme uniaxial tension-compression tests of rubber materials 2:20pm - 2:40pm DIC-measurement and its approach for the FEM-simulation of "Die-Less-Hydroforming" 2:40pm - 3:00pm Experiments on wave propagation in soft resins 3:00pm - 3:20pm Comparison of structured and conforming meshes in FE analyses of textile reinforced air spring bellows 3:20pm - 3:40pm Modal flatness analysis of thin sheets 3:40pm - 4:00pm On the macro to micro transformation |
S06.10: Material modelling in solid mechanics Location: BIG HS Chair: Manuel Petersmann Computational Methods and Concepts
Application of model order reduction to a finite element model of cryogenic turning 2:20pm - 2:40pm On matrix representations of tensor algebra in continuum physics 2:40pm - 3:00pm Automatic generation of material laws based on rheological models using a genetic algorithm 3:00pm - 3:20pm Symmetries for 4th and higher order tensors in generalized continua 3:20pm - 3:40pm On the change of the reference configuration and its application within FEM simulation 3:40pm - 4:00pm A juxtaposition of data driven and stochastic finite element analyses for problems with noisy material data |
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| S06.11: Material modelling in solid mechanics Location: SR 05 Chair: Franz Bamer Disordered / Granular/ Cellular Materials
Modelling of cellular materials by a microsphere-based material model 2:20pm - 2:40pm Static wetting on stretched soft substrates 2:40pm - 3:00pm Soil modelling with a DEM-Lookup approach 3:00pm - 3:20pm An extended hypoplastic model incorporating the coordination number for the simulation of granular flow 3:20pm - 3:40pm On the structural correlation in plastically deformed disordered materials |
S07.09: Coupled problems Location: HS 21 Chair: Andreas Ricoeur Modeling the actuation and sensing behavior of an IPMC within the framework of the Theory of Porous Media 2:20pm - 2:40pm Interfacial energies depending on curvature: the drastic loss of elastic coupling on small scales and its impact on multiphase mechanics 2:40pm - 3:00pm Non-locality in multi-scale poroelasticity: phenomena, computational homogenization and numerical model reduction 3:00pm - 3:20pm A mixed least-squares finite element formulation within the framework of the theory of porous media 3:20pm - 3:40pm The Taylor-least-squares time integrator scheme applied to tracer equations of a sea ice model |
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| S07.10: Coupled problems Location: SR 07 Chair: Tobias Gleim FORC measurements - characterisation of interparticle interaction in magnetoactive elastomers (MAE) 2:20pm - 2:40pm Viscosity increase caused by anchoring of functionalized magnetic nanoparticles in nematic liquid crystals 2:40pm - 3:00pm Coupling and computation of electromagnetism and mechanics 3:00pm - 3:20pm Development of a macro-model for magnetorheological elastomers based on microscopic simulations 3:20pm - 3:40pm Coupling of a peridynamic continuum with an analytical solution |
S08.06: Multiscales and homogenization Location: HS 41 Chair: Matti Schneider Virtual elements for the homogenization of polycrystalline materials: evidence of locking-free responses with strong anisotropies 2:20pm - 2:40pm The explicit jump discretization with Lippmann-Schwinger solvers for thermal computational homogenization problems 2:40pm - 3:00pm Investigation on numerical solution schemes for describing phase transformations by the Kampmann-Wagner numerical model 3:00pm - 3:20pm Isogeometric multiscale modeling with Galerkin and collocation methods 3:20pm - 3:40pm Diffuse modelling of weak discontinuities 3:40pm - 4:00pm Implementing a microstructure model of rubber with self-organization into a FEM Software |
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| S08.07: Multiscales and homogenization Location: SR 03 Chair: Thorsten Bartel Finite element simulations and nonlinear homogenization of fibre reinforced elastomer composite 2:20pm - 2:40pm Magneto-electric product properties of multiferroic composites 2:40pm - 3:00pm Investigation of localized instabilities of stretching- and bending-dominated truss lattices treated as nonlocal generalized continua 3:00pm - 3:20pm Homogenization-based multiscale design of truss metamaterials with controllable effective properties 3:20pm - 3:40pm Contact between shear-deformable beams with elliptical cross sections to represent dry-woven fabrics 3:40pm - 4:00pm Classification of process induced porosity with topological data analysis |
S10.03: Turbulence and reactive flows Location: HS 03 Chair: Bettina Frohnapfel A new approach to simulate confined, premixed and slow combustion 2:20pm - 2:40pm What can we learn from information-entropy about turbulence and Large-Eddy Simulation? 2:40pm - 3:00pm Vortex cores as barriers to the diffusion of vorticity in 2D turbulence 3:00pm - 3:20pm Lagrangian perspectives on turbulent superstructures in Rayleigh-Bénard convection 3:20pm - 3:40pm RANS-type turbulence modelling using lie-symmetries |
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| S11.07: Interfacial flows Location: HS 02 Chair: Thomas Loimer Numerical and experimental investigation on the flow behavior of liquids in narrow gaps 2:20pm - 2:40pm Convective dissolution in porous media: experimental investigation in Hele-Shaw cell 2:40pm - 3:00pm Effective permeability of a flow through a packed bed of beads between two walls affected by overlapping wall effects 3:00pm - 3:20pm Numerical investigation of aerosol deposition on single fibers 3:20pm - 3:40pm Flow through randomly-oriented fibrous filters 3:40pm - 4:00pm Estimating the efficiency of flow-through filters for marine diesel engine applications using a CFD-QMOM approach |
S12.07: Waves and acoustics Location: HS 34 Chair: Manfred Kaltenbacher Towards an efficient direct noise computation of hydrodynamic-acoustic feedback mechanisms 2:40pm - 3:00pm Helmholtz decomposition of compressible flow data at Mach 0.8 3:00pm - 3:20pm Uncertainty quantification for direct noise computation of cavity feedback 3:20pm - 3:40pm Numerical investigation of the resonance behavior of flow-excited Helmholtz resonators 3:40pm - 4:00pm Numerical calculation of aerodynamic noise generated from missile in low mach number flight |
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| S14.10: Applied analysis Location: HS 32 Chair: Ulisse Stefanelli Effective theories for atomistically thin films 2:40pm - 3:00pm Variance reduction for effective energies of random lattices in the Thomas-Fermi-von Weizsäcker model 3:00pm - 3:20pm Rigorous derivation of the effective equation of a linear reaction system with different time scales 3:20pm - 3:40pm On a Gamma-limit of Willmore functionals with additional curvature penalization term 3:40pm - 4:00pm On Kolmogorov's two-equation model for turbulence |
S15.07: Uncertainty quantification Location: HS 07 Chair: Hanno Gottschalk Stochastic approximation for PDE constrained optimization under uncertainty 2:20pm - 2:40pm Variational Monte Carlo - bridging concepts of machine learning and high dimensional partial differential equations 2:40pm - 3:00pm Uncertainty quantification for the inflow control in hyperbolic supply systems with uncertain demand 3:00pm - 3:20pm Efficient yield optimization of electromagnetic devices 3:20pm - 3:40pm Kriging assisted Particle Swarm Optimization for efficient non-intrusive interval analysis 3:40pm - 4:00pm Robust aerodynamic design optimization via primal-dual aggregation method |
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| S16.05: Nonlinear and mixed-integer optimization Location: HS 06 Chair: Alexandra Schwartz A sequential homotopy method for mathematical programming problems 2:40pm - 3:00pm A hybrid semismooth-/quasi-Newton method (not only) for structured nonsmooth optimization 3:00pm - 3:20pm An approximation scheme for distributionally robust nonlinear optimization 3:20pm - 3:40pm Penalty formulations for mixed integer and PDE constrained optimization problems 3:40pm - 4:00pm Multi-dimensional sum-up rounding |
S18.09: Numerical methods of differential equations Location: HS 31 Chair: Ilaria Perugia Finite element approximation of second order PDEs in non-divergence form 2:20pm - 2:40pm On the benefits of divergence-conforming (Hybrid) DG FEM for incompressible flows 2:40pm - 3:00pm The Mass Conserving Mixed Stress (MCS) method for the Stokes equations: recent developments 3:00pm - 3:20pm A locally weighted least-squares finite element method for the advection-reaction equation 3:20pm - 3:40pm Solving compressible Navier-Stokes equations on simplex space-time meshes 3:40pm - 4:00pm Efficient numerical methods for solving optimal control problems |
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| S18.10: Numerical methods of differential equations Location: SR 08 Chair: Mario Ohlberger A phase-field model for fractures in incompressible solids 2:20pm - 2:40pm Parameter-robust multigrid preconditioner for linear poroelastic media 2:40pm - 3:00pm Stress reconstruction for elasticity problems 3:00pm - 3:20pm Reconstruction-based a-posteriori error estimation in stress-based FEM for frictional contact problems 3:20pm - 3:40pm Symmetry breaking patterns in the numerical minimization of the elastic energy of thin films 3:40pm - 4:00pm Weakly symmetric stress reconstruction and a posteriori error estimation for hyperelasticity |
S19.07: Optimization of differential equations Location: HS 30 Chair: Volker Schulz Optimal medication for tumors modeled by a Cahn-Hilliard-Brinkmann equation 2:20pm - 2:40pm Assimilation of surface current and water level measurements into a 3d barotropic circulation model of the German Bight using a 4DVAR technique 2:40pm - 3:00pm Arbitrary sensitivity for inverse problems in piezoelectricity 3:00pm - 3:20pm Numerical identification of motor units in muscles 3:20pm - 3:40pm Controlling a crowd with stochastic influence using external agents 3:40pm - 4:00pm Optimization problems for interacting particle systems and corresponding mean-field limits |
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| S20.07: Dynamics and control Location: HS 05 Chair: Sergio Lucia Extensions of a standard iterative learning control framework and their relevance for a range of applications 2:40pm - 3:00pm Differences and similarities between reinforcement learning and the classical optimal control framework 3:00pm - 3:20pm A combined homotopy-optimization approach to parameter identification for dynamical systems |
S21.03: Mathematical signal and image processing Location: SR 06 Chair: Clemens Kirisits Mathematical challenges of correspondence problems 2:40pm - 3:00pm Improved edge detection based on fractional derivatives for real-time measurement systems 3:00pm - 3:20pm Solving bilinear and quadratic inverse problems using tensorial liftings 3:20pm - 3:40pm Dynamical super-resolution with applications to ultrafast ultrasound imaging 3:40pm - 4:00pm A clustering algorithm for single-molecule localization in super-resolution microscopy |
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| S22.07: Scientific computing Location: HS 42 Chair: Jens Saak Tensor decompositions and Monte Carlo: compete or combine? 2:40pm - 3:00pm Application of modern tensor formats to quantum chemistry 3:00pm - 3:20pm Double-grid integration with interpolation-projection (DoGIP): an application to finite element method 3:20pm - 3:40pm A matrix-free approach for finite-strain hyperelastic problems using geometric multigrid 3:40pm - 4:00pm Optimal colorings of block smoothers in multigrid methods |
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| 4:00pm - 4:30pm |
Coffee Break Location: Festsaal, Hof 8, Student Space |
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| 4:30pm - 5:30pm |
PL6: Plenary Lecture 6 Location: Audimax, streaming to BIG HS Chair: Marc Avila A fluid mechanic's analysis of the tea-cup singularity |
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| 5:40pm - 6:40pm |
S04.14: Structural mechanics Location: Audimax Chair: Günther Meschke Soil mechanical influence on numerical foundation design of tower cranes 6:00pm - 6:20pm Dealing with stochasticity in seismic safety analysis 6:20pm - 6:40pm A damage detection study of a bridge using bypassing vehicles and computational intelligence |
S06.12: Material modelling in solid mechanics Location: BIG HS Chair: Thomas Antretter Interfaces
Modeling deformation-dependent interface energies by means of phase-field theory 6:00pm - 6:20pm On higher-order interface models 6:20pm - 6:40pm Effect of surface energy anisotropy on diffusion controlled process in polycrystalline materials |
| S06.13: Material modelling in solid mechanics Location: SR 05 Chair: Manuel Petersmann Adhesives
Modeling the curing process of a polyurethane structural adhesive with regard to the mechanical properties of the cured material 6:00pm - 6:20pm On the singular integro-differential equations related to the adhesive interaction of elastic patch and plate 6:20pm - 6:40pm Material modelling of hyperelastic silicone adhesives considering stiffness reduction |
S07.11: Coupled problems Location: HS 21 Chair: Ralf Jänicke Determination of material parameters for a multiphasic modeling of hydrogels 6:00pm - 6:20pm A finite element analysis of a coupled diffusion-deformation theory for elastomeric hydrogels 6:20pm - 6:40pm An overview of simulated hydrogel behaviour under various kinds of stimulation |
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| S07.12: Coupled problems Location: SR 07 Chair: Tim Ricken Multiphysics modeling and simulation of fluid-saturated porous ferrogels at finite strains 6:00pm - 6:20pm A coupled thermo-hydro-mechanical model with double porosity for plant tissues 6:20pm - 6:40pm Modelling of ice formation and brine flow in Antarctic sea ice in the framework of the extended Theory of Porous Media (eTPM) |
S08.08: Multiscales and homogenization Location: HS 41 Chair: Dennis M. Kochmann A bottom-up continuum approach of crystal plasticity for the analysis of fcc microwires under torsion 6:00pm - 6:20pm Material behavior across scales - grain scale to continuum 6:20pm - 6:40pm Demand-based coupling of the scales in the finite temperature CADD method |
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| S08.09: Multiscales and homogenization Location: SR 03 Chair: Stephan Wulfinghoff CANCELLED!! A plaque growth model with fast oscillating forcing 6:00pm - 6:20pm Reduction of round-off errors in chemical reaction systems with different timescales 6:20pm - 6:40pm Mechanical properties assessments of as- cast light alloys predicted by a new size-sensitive variant of Differential Effective Medium theory |
S10.04: Turbulence and reactive flows Location: HS 03 Chair: Arne Scholtissek Coherent vortex structure investigation behind the axial fan impeller in pipe 6:00pm - 6:20pm Reduction of fuel consumption of small gas turbines at idling under combined operation with adjustable compressor inlet and turbine outlet guide vanes 6:20pm - 6:40pm Numerical approaches for the simulation of the yeast distribution in a fermentation tank |
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| S15.08: Uncertainty quantification Location: HS 07 Chair: Hanno Gottschalk Uncertainty quantification and prediction error meta classification in semantic segmentation with deep neural networks 6:00pm - 6:20pm Bayesian multi-scale analysis of mechanical structures 6:20pm - 6:40pm Causality and Bayesian network PDEs for multiscale representations of porous media |
S16.06: Nonsmooth optimization I Location: HS 06 Chair: Marc Steinbach On a new linearization approach for nonsmooth optimization 6:00pm - 6:20pm On the relation between MPECs and optimization problems in abs-normal form 6:20pm - 6:40pm On the hierarchical structure of Pareto critical sets in multiobjective optimization |
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| S18.11: Numerical methods of differential equations Location: HS 31 Chair: Mario Ohlberger Mode-based derivation of adjoint equations - a lazy man's approach 6:00pm - 6:20pm On some discrete boundary value problems for elliptic equations |
S21.04: Mathematical signal and image processing Location: SR 06 Chair: Clemens Kirisits On the robust PCA and Weiszfeld's algorithm 6:00pm - 6:20pm Reconstruction of non-stationary signals by the generalized Prony method |
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| Date: Friday, 22/Feb/2019 | ||
| 8:30am - 10:30am |
S01.05: Multi-body dynamics Location: HS 16 Chair: Michael Krommer On the origin of passive rotation in rotational joints, and how to calculate it 8:50am - 9:10am On different geometric approaches to the dynamics of finite-dimensional mechanical systems 9:10am - 9:30am Kinematics of finite-dimensional mechanical systems on Galilean manifolds 9:30am - 9:50am Dynamics of finite-dimensional mechanical systems on Galilean manifolds |
S02.08: Biomechanics Location: HS 01 Chair: Alexander E. Ehret AFM-based microbeam bending of human cortical bone lamellae from the femur midshaft 8:50am - 9:10am Hierarchical elastoplasticity of bone 9:10am - 9:30am NURBS-enriched finite element formulation for frictional contact between bone and implant 9:30am - 9:50am Towards physiological conditions in total knee arthroplasty by a bionics-inspired tibial implant design 9:50am - 10:10am CANCELLED!! An experimental testing workflow for personalized osteosynthesis systems |
| S03.08: Damage and fracture mechanics Location: HS 50 Chair: Stephan Wulfinghoff Detection of cracks and notches based on the monitoring of remote strain fields and the distributed dislocation technique 8:50am - 9:10am Noise reduction for DIC measurements and single strut testing 9:10am - 9:30am Investigations on biaxial specimens for anisotropic damage evolution in SMC 9:30am - 9:50am Simulation of subcritical crack propagation in hard metal microstructures |
S04.15: Structural mechanics Location: Audimax Chair: Malte von Scheven A first order homogenization approach for structural elements: beam kinematics 8:50am - 9:10am Evidences of the non-negligible effects of the orientation of material principal directions on the structural response of a planar anisotropic beam 9:10am - 9:30am CANCELLED!! A higher-order shear deformation approach to the mixed-mode buckling problem in composite laminated beams 9:30am - 9:50am Nonlinear finite element study of beams with elasto-plastic damage behavior in the post-buckling regime 9:50am - 10:10am Extension of Boley’s method to two-layer rectangular beams 10:10am - 10:30am On a similarity transformation based on a Jordan Decomposition leading to an exact transfer matrix for a composite beam structure with refined Zigzag kinematics |
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| S06.14: Material modelling in solid mechanics Location: BIG HS Chair: Thomas Antretter Identification and Calibration
Experimental investigation of material parameters from direct laser writing 8:50am - 9:10am Identification of parameters using iterative biparabolic target functions 9:10am - 9:30am Influence of thermal boundary conditions on the parameter identification in thermodynamics 9:30am - 9:50am Parameter identification of strain rate dependent hardening for sheet metals 9:50am - 10:10am Towards deep learned constitutive models based on two-dimensional strain fields |
S07.13: Coupled problems Location: HS 21 Chair: Detlef Kuhl Simulation of thermoelastic problems with the finite element method 8:50am - 9:10am Finite-strain thermo-viscoplasticity for case-hardening steels over a wide temperature range 9:10am - 9:30am A diffuse-interface model for two-phase flow with thermocapillary effects and phase transitions 9:30am - 9:50am Hygro-micromechanical analysis of the interfiber bonding in a fiber-network 9:50am - 10:10am Polymorphic uncertainty quantification of computational soil and earth structure simulations via the variational sensitivity analysis 10:10am - 10:30am Optimization of diffusion driven degradation processes |
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| S07.14: Coupled problems Location: SR 07 Chair: Andreas Zilian A finite-element framework for the modelling and simulation of phase transforming magnetic solids using energy relaxation concepts 8:50am - 9:10am Modeling and simulation of magneto-elastic coupling using FFT-based homogenization methods 9:10am - 9:30am The interplay of particle structure and mechanical properties in NdFeB-loaded magnetorheological elastomers 9:30am - 9:50am Influence of damaged interfaces on poling processes and coupling factors in magnetoelectric composites 9:50am - 10:10am Nonlinear bilateral caloric-electromechanical couplings in polycrystalline ferroelectrics |
S08.10: Multiscales and homogenization Location: HS 41 Chair: Abbas Davud Tutcuoglu Boundary conditions in continuum dislocation dynamics 9:10am - 9:30am Coupled atomistic-continuum simulation of the mechanical properties of single-layered graphene sheets 9:30am - 9:50am Investigation of the mechanical behavior of polystyrene using molecular dynamics 9:50am - 10:10am Modelling atomic scale rearrangements in silica glass under simple shear deformation 10:10am - 10:30am FFT-based homogenisation accelerated by low-rank approximations |
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| S08.11: Multiscales and homogenization Location: SR 03 Chair: Massimiliano Gei Canonical quasicrystalline metamaterials 8:50am - 9:10am Local instability driven macroscopic deformations in fibrous networks 9:10am - 9:30am Maximum-entropy approximants for numerical energy relaxation and associated microstructure formation in problems with non-convex energetic potentials 9:30am - 9:50am Innovative characterization and multiscale modeling of dental cement pastes 9:50am - 10:10am A spatiotemporal non-local elastodynamic homogenization for composites |
S11.08: Interfacial flows Location: HS 02 Chair: Marcus Schmidt Modeling and simulation of the desalination process using CO2 hydrate 8:50am - 9:10am Proceedings in fluiddesign 9:10am - 9:30am A CFD model for simulating the electron beam welding of a CrMnNi-steel |
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| S12.08: Waves and acoustics Location: HS 34 Chair: Manfred Kaltenbacher A mesoscale material model to describe continuous mode conversion of lamb waves in composite materials 8:50am - 9:10am Effective description of anisotropic wave dispersion in mechanical band-gap metamaterials via the relaxed micromorphic model 9:10am - 9:30am Dynamic anisotropy and localisation in relaxed micromorphic continua 9:30am - 9:50am Microstructure-related Stoneley waves and wavefront manipulation at a 2D Cauchy/relaxed micromorphic interface 9:50am - 10:10am Tuning of vibration and wave propagation characteristics in pre-deformed periodic lattice frame structures |
S14.11: Applied analysis Location: HS 32 Chair: Patrick Dondl Dynamic perfect plasticity and damage in viscoelastic solids 8:50am - 9:10am Coupled advection-reaction-diffusion processes on an evolving microstructure: analysis and homogenization 9:10am - 9:30am A unified model for stress-driven rearrangement instabilities 9:30am - 9:50am Drift-diffusion problems with Gauss-Fermi statistics and field-dependent mobility for organic semiconductor devices 9:50am - 10:10am Weak-strong uniqueness for Navier-Stokes two-phase flow with surface tension 10:10am - 10:30am Two-speed solutions to non-convex rate-independent systems |
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| S15.09: Uncertainty quantification Location: HS 07 Chair: Hanno Gottschalk Low-rank approximations for fuzzy-stochastic models 8:50am - 9:10am Reliability analysis for a polymorphic uncertainty model of heterogeneous materials using a domain decomposition approach 9:10am - 9:30am A fuzzy uncertainty model for analytical and numerical homogenization of transversely fiber reinforced plastics |
S16.07: Nonsmooth optimization II Location: HS 06 Chair: Christian Clason Why under certain conditions one-dimensional search for the optimum of a function is really Fibonaccian. 8:50am - 9:10am Theory and numerical practice for optimization problems involving $l^p$ functionals, with p in [0,1) 9:10am - 9:30am First-order methods and model splitting techniques for non-convex non-smooth optimization 9:30am - 9:50am A primal-dual algorithm for risk minimization 9:50am - 10:10am Random function iterations for stochastic fixed point problems |
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| S17.07: Applied and numerical linear algebra Location: Elise-Richter HS Chair: Alexander Heinlein A subspace framework for H-infinity-norm minimization 8:50am - 9:10am Projected Newton-Kleinman method for the algebraic Riccati equation 9:10am - 9:30am Efficient preconditioning of hp-FEM matrices by hierarchical low-rank approximations 9:30am - 9:50am Low rank tensor train methods for isogeometric analysis in PDE-constrained optimization 9:50am - 10:10am Scalable parallel hierarchical matrices on GPUs 10:10am - 10:30am The Loewner framework for modeling and analysis of nonlinearities in the context of Generalized Frequency Response Functions |
S18.12: Numerical methods of differential equations Location: HS 31 Chair: Ilaria Perugia Space-time finite and boundary element methods 9:10am - 9:30am Parallel sace-time finite element solvers of parabolic initial-boundary value problems with non-smooth solutions 9:30am - 9:50am Higher-order time stepping for micromagnetism 9:50am - 10:10am A new domain-based implicit-explicit time stepping scheme based on the class of exponential integrators called sEPIRK 10:10am - 10:30am Numerical integration of coupled problems via convolution quadrature |
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| S19.08: Optimization of differential equations Location: HS 30 Chair: Kevin Sturm Optimal control and asymptotic analysis of the Cattaneo model 8:50am - 9:10am The Cattaneo-Model in the context of thermoablation of liver tumors 9:10am - 9:30am Optimal boundary control of hyperbolic balance laws with state constraints 9:30am - 9:50am Optimal control of a critical semilinear wave equation in 3d 9:50am - 10:10am Optimal control of the relativistic Vlasov-Maxwell system with boundary conditions |
S21.05: Mathematical signal and image processing Location: SR 06 Chair: Clemens Kirisits Total variation based Lavrentiev regularisation for signal processing 8:50am - 9:10am A convex variational model for learning image descriptors from incomplete data 9:10am - 9:30am Sparsity of solutions for variational inverse problems with finite-dimensional data 9:30am - 9:50am Convergent domain decomposition methods for total variation minimization 9:50am - 10:10am Joint reconstruction in multi-modal electron tomography |
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| S22.08: Scientific computing Location: HS 42 Chair: Jens Saak Evaluating neural networks and quantum computing for solving mechanical problems 8:50am - 9:10am Geometric a-priori evaluation of sampling designs 9:10am - 9:30am Matrix-free multigrid solvers for phase-field fracture problems 9:30am - 9:50am Adaptive concentric interpolation: a data-driven sorrogate with application to nonlinear homogenization |
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| 10:30am - 11:00am |
Coffee Break Location: Festsaal, Hof 8 |
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| 11:00am - 12:00pm |
PL7: Plenary Lecture 7 Location: Audimax, streaming to BIG HS Chair: Detlef Kuhl History and recent developments of energy-momentum schemes |
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| 12:00pm - 1:00pm |
Closing Location: Audimax |
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