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A bottom‐up continuum approach of crystal plasticity for the analysis of fcc microwires under torsion
Author(s) -
Zoller Kolja,
Schulz Katrin
Publication year - 2019
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201900032
Subject(s) - crystal plasticity , torsion (gastropod) , dislocation , plasticity , materials science , condensed matter physics , dislocation creep , classical mechanics , physics , composite material , medicine , surgery
The microstructural evolution of face‐centered cubic microwires is studied using a physical motivated, homogenized continuum model of crystal plasticity. The dislocation configuration in the three‐dimensional space is thereby described via a Continuum Dislocation Dynamics (CDD) theory including a dislocation source term. The resulting spatial distribution of dislocation densities and strain components are shown for a relaxation problem with torsional loading.