A random wear model for the interaction between a rough and a smooth surface

✍ Scribed by Sören Andersson; Anders Söderberg; Ulf Olofsson

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 214 KB
• Volume: 264
• Category: Article
• ISSN: 0043-1648
• DOI: 10.1016/j.wear.2006.12.075

✦ Synopsis

Contact surfaces in many applications change form due to plastic and elastic deformation and to wear. This study focused on the plastic deformation and wear of the asperities on a rough surface rubbing against an opposite smooth, hard and wear-resistant surface. A stochastic model for the prediction of plastic deformations and wear of a rough surface is proposed. The surface roughness and the interaction between the surfaces are also represented by stochastic models. A single asperity is studied as it comes into contact and interacts with the opposite surface. Since the wear process is simulated as an initial-value problem, the proposed general wear model is formulated as a first order differential equation system representing events during the rubbing process at all of the asperities considered on a surface.