Thermodynamic dislocation theory: Size effect in torsion
Materials Science
2018-08-20 v1
Abstract
The thermodynamic dislocation theory developed for non-uniform plastic deformations is used here for the analysis of twisted copper wires. With a small set of physical parameters that we expect to be independent of strain rate and temperature, we can simulate the torque-twist curves that match the experimental ones of Liu et al. (2012). It is shown that the size effect results from the accumulation and pile-up of excess dislocations.
Cite
@article{arxiv.1808.05757,
title = {Thermodynamic dislocation theory: Size effect in torsion},
author = {Khanh Chau Le and Yinguang Piao},
journal= {arXiv preprint arXiv:1808.05757},
year = {2018}
}
Comments
23 pages, 12 figures. arXiv admin note: substantial text overlap with arXiv:1806.04304, arXiv:1803.04838