Three-Dimensional Transient Interlaminar Thermal Stresses in Angle-Ply Composites

[+] Author and Article Information
Yuan Ruo Wang, Tsu-Wei Chou

Center for Composite Materials and Department of Mechanical Engineering, University of Delaware, Newark, DE 19716

J. Appl. Mech 56(3), 601-608 (Sep 01, 1989) (8 pages) doi:10.1115/1.3176134 History: Received December 23, 1987; Revised December 12, 1988; Online July 21, 2009


This paper studies the three-dimensional transient interlaminar thermal stresses in elastic, angle-ply laminated composites due to sudden changes in the thermal boundary conditions. The transient temperature field and transient interlaminar thermal stresses of the laminate are obtained by solving the heat conduction equation and by a zeroth-order perturbation analysis of the equilibrium equations, respectively. Numerical results for a four-layer angle-ply laminate have shown that the interlaminar normal stress near the free edge is significantly higher than that in the interior region and it increases rapidly with the fiber volume fraction.

Copyright © 1989 by ASME
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