Stress Concentrations in an Intermingled Hybrid Composite

[+] Author and Article Information
H. A. Luo, Q. Wang

Department of Engineering Mechanics, Shanghai Jiao Tong University, Shanghai 200030, China

J. Appl. Mech 64(4), 738-742 (Dec 01, 1997) (5 pages) doi:10.1115/1.2788977 History: Received March 28, 1996; Revised March 03, 1997; Online October 25, 2007


This paper studies the stress redistribution in a tensile hybrid composite sheet due to the breakage of a high modulus fiber. Employing a continuous distribution of dislocations, a set of singular integral equations is established to analyze the fiber crack impinging upon weakly bonded fiber-matrix interfaces. After solving the integral equations numerically, the stress concentration factors of both high modulus and low modulus fibers are evaluated as a function of loading stress and interfacial parameters. The results are compared with those obtained from shear-lag model solution.

Copyright © 1997 by The American Society of Mechanical Engineers
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