On the stress state at the yield point in symmetric bicrystals in (110) channel die compression

被引：2
|
作者：
Havner, KS [1 ]
Yu, PG [1 ]
机构：
[1] N Carolina State Univ, Dept Civil Engn, Raleigh, NC 27695 USA
来源：
MECHANICS OF MATERIALS | 1998年 / 27卷 / 04期
基金：
美国国家科学基金会;
关键词：
crystal plasticity; bicrystal; channel die compression; multiple slip; stress analysis; yield-point state;
D O I：
10.1016/S0167-6636(97)00049-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The stress state at the yield point in symmetric fee bicrystals is analytically investigated for a range of crystal lattice orientations in (110) channel die compression. Although strain-rates and lattice-rotation rates necessarily are nonuniform, it is proved that the stress field satisfying both equilibrium and yield-locus constraints must lie on an edge of the locus and is thereby uniform. (C) 1998 Elsevier Science Ltd.
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页码：211 / 227
页数：17
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