Thermodynamic analysis of the Livermore molecular-dynamics simulations of dislocation-mediated plasticity
Materials Science
2018-09-12 v1 Soft Condensed Matter
Abstract
Results of recent large-scale molecular dynamics simulations of dislocation-mediated solid plasticity are campared with predictions of the statistical thermodynamic theory of these phenomena. These computational and theoretical analyses are in substantial agreement with each other in both their descriptions of strain-rate dependent steady plastic flow and of a transient stress peak associated with initially small densities of dislocations. The comparisons between the numerical simulations and basic theory reveal inconsistencies in some conventional phenomenological descriptions of solid plasticity.
Keywords
Cite
@article{arxiv.1805.03763,
title = {Thermodynamic analysis of the Livermore molecular-dynamics simulations of dislocation-mediated plasticity},
author = {J. S. Langer},
journal= {arXiv preprint arXiv:1805.03763},
year = {2018}
}