Nonlinear Elastic Properties of Organic Matrix Composites at Elevated Temperatures

[+] Author and Article Information
Sung Kyu Ha, George S. Springer

Department of Aeronautics and Astronautics, Stanford University, Stanford, Calif. 94305

J. Eng. Mater. Technol 110(2), 124-127 (Apr 01, 1988) (4 pages) doi:10.1115/1.3226019 History: Received November 11, 1987; Online September 15, 2009


A model is presented for describing the nonlinear, elastic behavior of unidirectional organic matrix composites at elevated temperatures. The model describes the longitudinal and transverse tensile, longitudinal and transverse compressive, and shear stress-strain relationships, as well as the Poisson ratios. Tests were performed in the temperature range 75 to 350°F using unidirectional laminates made of Fiberite T300/976 graphite epoxy tape. The constants required in the model for this material were deduced from the data.

Copyright © 1988 by ASME
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