Scale bridging computational methods

Scale bridging computational methods

Gruppenbild

Continuum theories for plasticity modeling have a long history of predicting the mechanical behavior of component deformation. There are a large number of classic continuum models that are able to predict macroscopically observable quantities - such as plastic flow or hardening - but not, for example, size-dependent deformation aspects in the (sub-)micrometer range without additional ad-hoc assumptions. We are working on a novel dislocation density-based continuum theory (CDD - "Continuum Dislocation Dynamics") that contains much of the essential information of dislocation systems without losing the efficiency in a continuous description. To do this, we rely on classic modelling and homogenization processes but also on new methods such as machine learning or graph theory processes. One of our goals is to simulate real microcomponents and, in comparison with discrete dislocation dynamics simulations and experiments, to obtain new information about possible mechanisms of plastic deformation and material microstructures.

sudmanns_markus_KS
kolja_zoller_KS
Kreis Stefan
kreis_stephan_KS