Plasticity and non-Schmid effects
Materials Science
2013-11-05 v1 Soft Condensed Matter
Abstract
The structure of the overall response of a metal polycrystal is analyzed under the assumption that activity on the slip systems of its constituents is governed by a generalized Schmid law. In the resulting macro-model of metal plasticity the overall rate of plastic deformation is related to the stress-gradient of the yield surface via a generalized, but still associated flow rule. While the overall rate of plastic deformation is no longer collinear with the stress-gradient of the yield surface, its deviation is characterized by an additional macro-variable, representative of the rate of the non-Schmid effects taking place at constituent level.
Cite
@article{arxiv.1307.0500,
title = {Plasticity and non-Schmid effects},
author = {Stefan C. Soare},
journal= {arXiv preprint arXiv:1307.0500},
year = {2013}
}
Comments
22 pages