Thermo-Viscoelastic Response of Graphite/Epoxy Composites

[+] Author and Article Information
Kuen Y. Lin, I. H. Hwang

Department of Aeronautics and Astronautics, University of Washington, Seattle, WA 98195

J. Eng. Mater. Technol 110(2), 113-116 (Apr 01, 1988) (4 pages) doi:10.1115/1.3226017 History: Received November 11, 1987; Online September 15, 2009


The thermo-viscoleastic behavior of composite materials is studied analytically using a special finite-element formulation. Numerical results on stress and deformation histories are obtained for both unnotched and notched graphite/epoxy composites subjected to mechanical and thermal spectrum loads. The results indicate that time-dependent effects are important in composites with matrix-dominated layup orientations. Such effects also strongly depend on the specific environment condition and load spectrum applied.

Copyright © 1988 by ASME
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