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Tribology of Material Contacts under Dynamic Loading, Studied by Electrical Resistance Measurement

Published online by Cambridge University Press:  17 March 2011

Xiangcheng Luo  and
D.D.L. Chung
Xiangcheng Luo
Affiliation:
Composite Materials Research Laboratory, University at Buffalo The State University of New York, Buffalo, NY 14260-4400, U.S.A.
D.D.L. Chung
Affiliation:
Composite Materials Research Laboratory, University at Buffalo The State University of New York, Buffalo, NY 14260-4400, U.S.A.
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Abstract

The tribology of material contacts under cyclic compression in the direction perpendicular to the plane of the contact was studied by measurement of the contact electrical resistivity of the contact during the dynamic loading. The real-time monitoring allowed observation of both reversible and irreversible effects. The material contacts studied were those involving steel, carbon fiber polymer-matrix composite, cement mortar and graphite, due to their relevance to fastening, concrete structures, electric brushes and electrical pressure contacts. Correlation was made between the contact resistivity and the occurrence of elastic/plastic deformation at asperities. The interfacial structure was found to depend on the stress and the loading history.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 697: Symposium P – Surface Engineering 2001--Fundamentals and Applications , January 2001 , P8.11
Copyright
Copyright © Materials Research Society 2002

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