Model for compaction of metal powders

被引：32
|
作者：
Park, SJ [1 ]
Han, HN
Oh, KH
Lee, DN
机构：
[1] Seoul Natl Univ, Div Engn & Mat Sci, Seoul 151742, South Korea
[2] Seoul Natl Univ, Res Ctr Thin Film Fabricat & Crystal Growing Adv, Seoul 151742, South Korea
来源：
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES | 1999年 / 41卷 / 02期
关键词：
yield criterion; metal powder compaction; continuum mechanics;
D O I：
10.1016/S0020-7403(98)00022-8
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A new yield criterion for metal powder compaction based on continuum mechanics has been proposed. It includes three parameters to characterize the geometric hardening of powder compact and strain hardening of incompressible metal matrix. The elasto-plastic finite element method to describe compaction of metal powders has been formulated using the new yield criterion. The values of parameters in the yield criterion could be determined through cold isostatic pressing (CIP). The finite-element method was used to simulate compaction behaviour of copper powders of different shape and mean particle size. (C) 1998 Elsevier Science Ltd. All rights reserved.
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页码：121 / 141
页数：21
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