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RESEARCH PAPERS

Mechanical and Electrical Properties of Glass and Carbon Fiber-Reinforced Composites

[+] Author and Article Information
G. R. Headifen

Center for Electromechanics, University of Texas, Austin, TX 78712

E. P. Fahrenthold

Department of Mechanical Engineering, University of Texas, Austin, TX 78712

J. Energy Resour. Technol 113(3), 176-181 (Sep 01, 1991) (6 pages) doi:10.1115/1.2905801 History: Received November 01, 1989; Revised June 23, 1991; Online April 16, 2008

Abstract

The design of composite rotors for high-energy density pulsed power supplies demands accurate characterization of both the mechanical and electrical properties of fiber-reinforced epoxy. The mechanical properties of S-2 glass-epoxy, IM6 graphite-epoxy, and hybrid graphite-glass epoxy composites were measured in tension and torsion tests, providing strength and stiffness parameters for rotor dynamics modeling. Variable frequency electrical resistivity tests were conducted to allow estimation of eddy current losses arising in carbon-reinforced materials. Volume fraction measurements using electron microscopy and analysis by digestion allow for normalization of the test results with respect to composite fiber content. The experimental results were used to evaluate the micromechanical rule of mixtures and Halpin-Tsai correlations.

Copyright © 1991 by The American Society of Mechanical Engineers
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