A three-invariant cap plasticity model with kinematic hardening rule for powder materials

被引：3

作者：

Khoei, A. F. ^{[1
]}

DorMohammadi, H. ^{[1
]}

Azami, A. R. ^{[1
]}

机构：

[1] Sharif Univ Technol, Dept Civil Engn, Ctr Excellence Struct & Earthquake Engn, Tehran, Iran

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2007年 / 187卷

关键词：

three-invariant plasticity; cap model; kinematic hardening; powder compaction;

D O I：

10.1016/j.jmatprotec.2006.11.058

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, a three-invariant cap plasticity with a kinematic hardening rule is presented for powder materials. A general form is developed for the cap plasticity which can be compared with some common double-surface plasticity models proposed for powders in literature. The constitutive elasto-plastic matrix and its components are derived based on the definition of yield surface, hardening parameter and non-linear elastic behavior, as function of relative density of powder. The procedure for determination of powder parameters is described. Finally, the applicability of the proposed model is demonstrated in numerical simulation of triaxial and confining pressure tests. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：680 / 684

页数：5

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