CHEMS Seminar: Modeling and Simulation of Crystal Plasticity

Abstract

Many structural materials are polycrystalline and the reliable prediction of their mechanical behavior still poses significant challenges. The major reason for is due to the anisotropy of crystal plasticity, which originates from dislocation slip and additional martensitic transformations and/or mechanical twinning. The modeling and simulation of crystal plasticity thus faces a multi-scale problem starting with the physically-based description of relevant deformation mechanisms, then embedding this in a suitable continuum-mechanical framework, and finally coarse-graining the immense amount of degrees of freedom to keep the problem numerically tractable.