Intergranular and intragranular behavior of polycrystalline aggregates. Part 2: Results

被引：197

作者：

Barbe, F ^{[1
]}

Forest, S ^{[1
]}

Cailletaud, G ^{[1
]}

机构：

[1] CNRS, Ecole Mines Paris, UMR 7633, Ctr Mat, F-91003 Evry, France

来源：

INTERNATIONAL JOURNAL OF PLASTICITY | 2001年 / 17卷 / 04期

关键词：

crystal plasticity; elastic-viscoplastic material; polycrystalline material; finite element;

D O I：

10.1016/S0749-6419(00)00062-0

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The global, intergranular and intragranular responses of a polycrystalline aggregate are investigated. It is shown that the heterogeneity of stress and strain dramatically increases from the global to the local level. Plastic deformation structures develop on a scale larger than the grain. Several types of boundary conditions are applied to polycrystalline aggregates, in order to estimate the importance of the surface effect. The results obtained are presented as contour plots on the cube, and a detailed study is performed to relate the variation obtained with the orientation of the grain and the position in the aggregate. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：537 / 563

页数：27

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