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RESEARCH PAPERS

An Elastic Potential for the Nonlinear Response of Unidirectional Graphite Composites

[+] Author and Article Information
M.-J. Pindera

Levecque Technical Center, Certainteed Corp., Blue Bell, Pa. 19422

C. T. Herakovich

Virginia Polytechnic Institute and State University, Blacksburg, Va. 24061

J. Appl. Mech 51(3), 546-550 (Sep 01, 1984) (5 pages) doi:10.1115/1.3167672 History: Received April 01, 1983; Revised September 01, 1983; Online July 21, 2009

Abstract

An elastic potential is proposed that is capable of modeling the reversible portion of the observed nonlinear response of unidirectional graphite fiber composites. The model includes both the stiffening stress-strain behavior as well as the softening Poisson’s response for loading in the fiber direction. The model is compared with experimental results for Celion 6000/PMR-15 graphite-polyimide.

Copyright © 1984 by ASME
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