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TECHNICAL PAPERS

A Model of Asperity Interactions in Elastic-Plastic Contact of Rough Surfaces

[+] Author and Article Information
Yongwu Zhao, L. Chang

Department of Mechanical Engineering, The Pennsylvania State University, University Park, PA 16802

J. Tribol. 123(4), 857-864 (Nov 03, 2000) (8 pages) doi:10.1115/1.1338482 History: Received January 18, 2000; Revised November 03, 2000
Copyright © 2001 by ASME
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References

Figures

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Contact of a rough surface with a rigid smooth flat
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The territory of an asperity
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Mean separation of the surfaces as a function of contact load and plasticity index (a) ψ=0.7, (b) ψ=1.5, and (c) ψ=2.5
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Real area of contact of the surfaces as a function of contact load and plasticity index (a) ψ=0.7, (b) ψ=1.5, and (c) ψ=2.5
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Micro-contact load redistribution induced by asperity interactions for elastic surfaces (a) Wt/AnE=10−5, (b) Wt/AnE=10−4, and (c) Wt/AnE=10−3
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Micro-contact load redistribution induced by asperity interactions for elastic-plastic surfaces (a) Wt/AnE=10−5, (b) Wt/AnE=10−4, and (c) Wt/AnE=10−3

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