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RESEARCH PAPERS

Optimal Cooling of Cross-Ply Composite Laminates and Adhesive Joints

[+] Author and Article Information
Y. Weitsman

Mechanics and Materials Center, Texas A&M University, College Station, Texas 77843

B. D. Harper

Texas A&M University, College Station, Texas 77843

J. Appl. Mech 49(4), 735-739 (Dec 01, 1982) (5 pages) doi:10.1115/1.3162610 History: Received April 01, 1981; Revised November 01, 1981; Online July 21, 2009

Abstract

This paper concerns the optimal cooling of symmetric, balanced, cross-ply composite laminates and adhesive joints so as to minimize the residual thermal stresses upon termination of the cool-down process. The computations are based on a recently developed analytical scheme and employ up-to-date data on graphite/epoxy laminas. The calculations consider the thermoviscoelastic response of the polymeric resins and incorporate the temperature dependence of the coefficients of thermal expansion. It is shown that the viscoelastic behavior may contribute to a significant reduction of the residual stresses.

Copyright © 1982 by ASME
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