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Topics

· Numerical homogenization of micro-heterogeneous materials with two-scale FEM
· Atomistic-based FEM for the nano-micro scale transition, Quasi-Continuum (QC)
· Modeling of inelasticity: material models and time integration methods
· Error estimation, adaptivity, quadtree/octree based networking
· Deep learning with convolutional neural networks
· Structural mechanics of (ultra)light cellular structures and SLM lattices
· Biomechanics/Medical Technology: Development of optimized hip/knee endoprostheses
· Simulation analysis of damage, localization and failure mechanisms as well as stability problems
· Phase field method: modeling of Li-ion battery electrodes
· Topology optimization in applications

Research Projects

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Coupling Scheme of FE-solver with MS solver on nanoscale
Nano-micro scale transition through atomistic continuum coupling via homogenization
Atomistic computer simulations based on classical interatomic potentials allow the description of material properties and processes with high temporal and spatial resolution but are limited to small system sizes ...
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Grain refinement during EAP as studied by atomistic simulations. a) Refined grain structure as identified by Orisodata; b) Defect structure in the sample. Only non-fcc atoms are shown; c) Dislocation structure at a low angle grain boundaries in the sample. Partial and full dislocations are colored green and blue, respectively. All other dislocations are stair-rod dislocations.
Atomistic modeling of severe plastic deformation at the nanoscale
Background: Severe plastic deformation (SPD) processes are forming techniques that impose large plastic strains to achieve ultra-fine grained and nanocrystalline microstructures. The refined microstructure results in a significant increase in strength ...