A two-dimensional finite element method for simulating the constitutive response and microstructure of polycrystals during high temperature plastic deformation

被引：75
|
作者：
Bower, AF [1 ]
Wininger, E [1 ]
机构：
[1] Brown Univ, Div Engn, Providence, RI 02912 USA
来源：
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS | 2004年 / 52卷 / 06期
关键词：
grain boundaries; creep; diffusion; polycrystalline material; finite elements;
D O I：
10.1016/j.jmps.2003.11.004
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We describe a finite element method designed to model the mechanisms that cause superplastic deformation. Our computations account for grain boundary sliding, grain boundary diffusion, grain boundary migration, and surface diffusion, as well as thermally activated dislocation creep within the grains themselves. Front tracking and adaptive mesh generation are used to follow changes in the grain structure. The method is used to solve representative boundary value problems to illustrate its capabilities. (C) 2003 Published by Elsevier Ltd.
引用
收藏
页码：1289 / 1317
页数：29
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