Discussions on constitutive equations of superplastic 5083 aluminum alloy

被引：11
|
作者：
Tokuda, M [1 ]
Inaba, T [1 ]
Ohigashi, H [1 ]
Kurakake, A [1 ]
机构：
[1] Mie Univ, Dept Mech Engn, Tsu, Mie 5148507, Japan
来源：
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES | 2001年 / 43卷 / 09期
关键词：
superplastic deformation; 5083 Al alloy; constitutive equation; combined loading;
D O I：
10.1016/S0020-7403(01)00027-3
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A constitutive equation for a fine-grain superplastic material, 5083 Al alloy, is proposed on the basis of combined loading experiments and the classical (mathematical, phenomenological) theory of plasticity using the potential function. The experiments are performed by applying the combined loads of axial force and torque to the thin-walled tubular specimen of 5083 Al alloy. A new potential function is proposed by incorporating the second invariant and third invariant of stress deviator. The proposed constitutive equation can predict the mechanical behavior of 5083 Al alloy under the combined loading conditions. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：2035 / 2046
页数：12
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