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《Journal of Zhejiang University(Natural Science)》 1993-01
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On the expression of plastic index and the analysis of contact characteristics of rough surfaces considering the surface film and thermal effect

Sheng Menghong Quan Yongxin Zhou Guiru(Dept. of Mech. Engr. )  
Considering both the effect of frictional force and the local high temperature, a new plastic index expression is proposed and the contact behaviours of rough surfaces are studied in this paper. The results show that: the frictional force has an affect on contact behaviour of rough surfaces, the effect will increase with the elliptic ratio of rough surface and must be consi dered in studying the deformation behaviour of rough surface. The revised plastic index proposed in the paper will be the helpful foundations to analyze the deformation behaviour of rough surface at sliding contact.
【Fund】: 高等学校博士点专项科研基金
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