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RESEARCH PAPERS

Normal Impact Model of Rough Surfaces

[+] Author and Article Information
Wen-Ruey Chang

Digital Equipment Corporation, Shrewsbury, MA 01545

Frederick F. Ling

Columbia Engineering Productivity Center, Columbia University, New York, NY 10027

J. Tribol 114(3), 439-447 (Jul 01, 1992) (9 pages) doi:10.1115/1.2920903 History: Received March 26, 1990; Revised May 01, 1991; Online June 05, 2008

Abstract

An elastic-plastic impact model for spheres is introduced as the basis to study the normal impact of rough surfaces. Statistics is applied to arrive at the ensemble behavior of many unit events alluded above, allowing the investigation of surface roughness effects. Dissipation of kinetic energy increases such as surface roughness, material compliance, and impact velocity is increased. The rebound velocity is shown to be dependent on surface topography and material properties, in addition to impact velocity.

Copyright © 1992 by The American Society of Mechanical Engineers
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