The Friction and Wear of Rubber Part 1: Effects of Dynamically Changing Slip Direction and the Damage Orientation Distribution Function

• Published in: Rubber chemistry and technology Vol. 75; no. 1; pp. 29 - 48
• Main Authors: Gerrard, David P., Padovan, Joe
• Format: Journal Article
• Language: English
• Published: Akron, OH American Chemical Society 01.03.2002; Rubber Division
• Subjects: Abrasives; Anisotropy; Applied sciences; Chemical engineering; Crack propagation; Exact sciences and technology; Friction; Laboratory tests; Mathematical models; Mechanical properties; Morphology; Organic polymers; Physicochemistry of polymers; Properties and characterization; Rubber; Series & special reports; Silicones; Wear resistance; SBR; Mechanical properties; Dispersion reinforced material; Wear mechanisms; Experimental study; Modeling; Abrasive wear; Vulcanizate; Distribution function; Wear resistance; Comparative study; Sliding friction; Damaging; Tribology
• ISSN: 0035-9475; 1943-4804
• DOI: 10.5254/1.3547671

In Part 1, results of an experimental and analytical study are offered which examined the effects of a dynamically changing slip direction on a rubber surface's friction and wear performance and on the properties of an industrial abrasive. For a filled SBR compound, it was found that a dynamically changing slip direction had a small effect on the friction/traction performance, but a substantial beneficial effect on the surface's wear performance. The abrasive's ability to generate wear was found to be strongly dependent on the accumulation of side slip over the life of the abrasive. Conceptualization of the Damage Orientation Distribution Function is offered to describe the statistical nature of the oriented damage generated on a slipping rubber surface. The experimental results are shown to be in excellent agreement with model predictions based on several simple assumptions regarding the effects that changing slip orientation has on the response of the Distribution Function.