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

被引：15
作者：
Kuroda, Mitsutoshi [1 ]
机构：
[1] Yamagata Univ, Grad Sch Sci & Engn, Mech Engn, Yonezawa, Yamagata 9928510, Japan
来源：
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES | 2015年 / 58卷
关键词：
Finite strains; Size effect; Shear bands; Flow localization; Finite element method; SUBSEQUENT YIELD SURFACE; CRYSTAL VISCOPLASTICITY; NONNORMALITY THEORY; PATH CHANGE; DEFORMATION; MODEL;
D O I：
10.1016/j.ijsolstr.2014.12.019
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
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.
引用
收藏
页码：62 / 72
页数：11
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