Thermal Effects in Dislocation Theory II: Shear Banding and Yielding Transitions
Materials Science
2016-12-02 v1 Statistical Mechanics
Abstract
The thermodynamic dislocation theory presented in preceding papers is used here to describe shear-banding instabilities. Central ingredients of the theory are a thermodynamically defined effective configurational temperature, and a formula for the plastic deformation rate determined by thermally activated depinning of entangled dislocations. An important feature of this paper is an interpretation of yielding transitions in polycrystalline solids.
Keywords
Cite
@article{arxiv.1612.00392,
title = {Thermal Effects in Dislocation Theory II: Shear Banding and Yielding Transitions},
author = {J. S. Langer},
journal= {arXiv preprint arXiv:1612.00392},
year = {2016}
}