Singular solutions in viscoplasticity under plane strain conditions

被引：0
作者：
Sergei Alexandrov
Yusof Mustafa
机构：
[1] Russian Academy of Sciences,A.Yu. Ishlinskii Institute for Problems in Mechanics
[2] Universiti Teknologi Malaysia,Faculty of Mechanical Engineering
来源：
Meccanica | 2013年 / 48卷
关键词：
Maximum friction law; Saturation stress; Singular solution; Viscoplasticity;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The paper deals with asymptotic behavior of viscoplastic solutions in the vicinity of maximum friction surfaces under plane strain conditions. The definition of maximum friction surfaces is that the friction stress is equal to the shear yield stress at sliding. The constitutive equations of the viscoplastic model adopted include a saturation stress. It is shown that it is possible to choose parameters of the viscoplastic model such that the regime of sliding is possible at maximum friction surfaces. In this case solutions are singular in the vicinity of such surfaces. Because of this feature of solutions, the viscoplastic model chosen possesses a smooth transition of qualitative behavior between rigid perfectly plastic and viscoplastic solutions, and this may prove to be advantageous for some applications.
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页码：2203 / 2208
页数：5
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