A Statistical Mechanical Model of Electrical Carbon Fiber Contacts

[+] Author and Article Information
J. Xie, M. Pecht, A. Dasgupta

CALCE-Electronic Products and Systems Center, University of Maryland, College Park, MD 20742

J. A. Swift, S. J. Wallace

Xerox Corporation, Webster, NY 14580

J. Electron. Packag 121(4), 286-290 (Dec 01, 1999) (5 pages) doi:10.1115/1.2793854 History: Received July 12, 1998; Revised May 05, 1999; Online November 05, 2007


This paper presents a model for electrical carbon fiber contacts. In the model, a statistically distributed fiber length was considered at contact surfaces. A technique of dealing with this kind of contact surfaces with statistically determined, or specifically undeterminable, geometry was developed. The results were compared with the experimental data obtained previously. Also, the contact behaviors of electrical carbon fiber contacts were discussed and some specific contact properties, which were also observed experimentally, were clarified. A contact resistance decreasing rate was defined in a logarithmic-logarithmic scale coordinate. A constant-rate contact region was identified. The objective of this research is to provide a theoretical basis for the contact surface designs of electrical connectors.

Copyright © 1999 by The American Society of Mechanical Engineers
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