The main goal of the current study is a numerical prediction of adhesive wear volume in a spherical contact. The contact consists of a deformable sphere and a rigid flat subjected to combined normal and tangential loading under full stick contact condition. Following the completion of the normal loading a tangential load is applied gradually leading to a decrease in the stiffness of the contact and eventually to sliding inception. Due to the full stick contact condition the sliding inception can occur on a certain surface beneath the contact interface. The entire volume contained between this incipient sliding surface and the contact interface defines a potential wear particle. Further increase of the tangential loading will eventually result in a detachment of a certain actual wear particle from the sphere. The detachment surface, which differs from the incipient sliding surface, occurs where the sphere material has failed due to reaching the ultimate shear or tensile strain. The volume contained between this detachment surface and the contact interface forms the actual wear particle that adheres to the moving flat and results in material transfer. Empirical expressions for the volumes of the potential and actual wear particles are developed showing their dependency on material properties and the normal preload.
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ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis
July 7–9, 2008
Haifa, Israel
Conference Sponsors:
- International
ISBN:
978-0-7918-4837-1
PROCEEDINGS PAPER
Models of Potential and Wear Particles in a Spherical Contact Available to Purchase
Jiries Salib,
Jiries Salib
Technion-Israel Institute of Technology, Haifa, Israel
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Yuri Kligerman,
Yuri Kligerman
Technion-Israel Institute of Technology, Haifa, Israel
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Izhak Etsion
Izhak Etsion
Technion-Israel Institute of Technology, Haifa, Israel
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Jiries Salib
Technion-Israel Institute of Technology, Haifa, Israel
Yuri Kligerman
Technion-Israel Institute of Technology, Haifa, Israel
Izhak Etsion
Technion-Israel Institute of Technology, Haifa, Israel
Paper No:
ESDA2008-59018, pp. 331-337; 7 pages
Published Online:
July 6, 2009
Citation
Salib, J, Kligerman, Y, & Etsion, I. "Models of Potential and Wear Particles in a Spherical Contact." Proceedings of the ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis. Volume 3: Design; Tribology; Education. Haifa, Israel. July 7–9, 2008. pp. 331-337. ASME. https://doi.org/10.1115/ESDA2008-59018
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