Experimental Investigation of the Elastic–Plastic Contact Area and Static Friction of a Sphere on Flat

Autor:	Izhak Etsion, G. Halperin, O. Levinson, Michael Varenberg
Rok vydání:	2005
Předmět:	Materials science Mechanical Engineering Surfaces and Interfaces Mechanics Tribology Static friction Surfaces Coatings and Films Elastic plastic Stress (mechanics) Contact mechanics Classical mechanics Mechanics of Materials Stiction Static friction coefficient Contact area
Zdroj:	Journal of Tribology. 127:47-50
ISSN:	1528-8897 0742-4787
DOI:	10.1115/1.1843834
Popis:	An experimental investigation is presented to evaluate recently published models for the contact and sliding inception of a deformable sphere loaded against a smooth rigid flat. The effects of the normal load on the contact area, junction growth, and the static friction force in the elastic–plastic contact regime are presented. Very good correlation is found between the predicted and measured contact area. A dramatic decrease of the static friction coefficient with increasing normal loading is observed, similar to the trend predicted by the model. The quantitative agreement is, however, less satisfying. Some possible reasons for the poor agreement are pointed out.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::102888377bebd54b6a7b19d1482892b4 https://doi.org/10.1115/1.1843834 Zobrazit plný text záznamu