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RESEARCH PAPERS

Thermal Stresses in Heat-Treated Fibrous Composites

[+] Author and Article Information
G. J. Dvorak, M. S. M. Rao

Department of Civil Engineering, Duke University, Durham, N. C.

J. Appl. Mech 43(4), 619-624 (Dec 01, 1976) (6 pages) doi:10.1115/1.3423943 History: Received October 01, 1975; Revised March 01, 1976; Online July 12, 2010

Abstract

A new axisymmetric plasticity theory of fibrous composites which was developed by the authors is applied to problems involving large uniform thermal changes. The determination of loading surfaces and internal microstress fields is described. To verify the accuracy of the theory, a simulation of the T6 temper, followed by uniaxial extension of a W-Al composite has been made. The resulting microstresses show an excellent agreement with available experimental magnitudes measured in situ by an X-ray technique. In addition, there is a very satisfactory agreement with results obtained by the finite-element method.

Copyright © 1976 by ASME
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