On the maximum friction law in viscoplasticity

被引：27
|
作者：
Alexandrov, S
Alexandrova, N
机构：
[1] Russian Acad Sci, Inst Problems Mech, Moscow 117526, Russia
[2] Bauman Moscow State Tech Univ, Moscow 107005, Russia
来源：
MECHANICS OF TIME-DEPENDENT MATERIALS | 2000年 / 4卷 / 01期
关键词：
friction law; metal forming operations; Viscoplasticity;
D O I：
10.1023/A:1009851621518
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Assuming a rigid Viscoplastic material model, it is shown that the Velocity fields adjacent to surfaces of maximum friction must satisfy sticking conditions. This means that the stress boundary condition, the maximum friction law, may be replaced by the velocity boundary condition. Axisymmetric flows without rotation and planar flows are considered. Applications of the upper bound theorem are discussed.
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页码：99 / 104
页数：6
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