Thermodynamic dislocation theory: Bauschinger effect
Materials Science
2018-05-02 v1 Soft Condensed Matter
Abstract
The thermodynamic dislocation theory developed for non-uniform plastic deformations is used here to simulate the stress-strain curves for crystals subjected to anti-plane shear-controlled load reversal. We show that the presence of the positive back stress during the load reversal reduces the magnitude of shear stress required to pull excess dislocations back to the center of the specimen. There, the excess dislocations of opposite signs meet and annihilate each other leading to the Bauschinger effect.
Cite
@article{arxiv.1803.04838,
title = {Thermodynamic dislocation theory: Bauschinger effect},
author = {Khanh Chau Le and Tuan Minh Tran},
journal= {arXiv preprint arXiv:1803.04838},
year = {2018}
}
Comments
7 pages, 9 figures. arXiv admin note: text overlap with arXiv:1701.08336 by other authors