A higher-order strain gradient plasticity theory with a corner-like effect

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:58

Article

Kuroda, Mitsutoshi

关键词: Finite strains;    Size effect;    Shear bands;    Flow localization;    Finite element method;   

DOI  :  10.1016/j.ijsolstr.2014.12.019

来源: Elsevier

【 摘 要 】

A corner-like plasticity model originally proposed as a size-independent theory is extended to include a size effect resulting from plastic strain gradients. A method of solving boundary value problems at finite strains is also presented. The efficiency of the new theory is demonstrated through two typical numerical examples: a constrained simple shear problem in which an infinitely long strip bounded by two hard materials is subjected to large shear under plane strain conditions, and a problem of shear band formation in plane strain tension. (C) 2014 Elsevier Ltd. All rights reserved.

【 授权许可】

Free