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TECHNICAL PAPERS

Anisotropic Constraint Effects on Interactive Damage Progression of General Lay-up Composites

[+] Author and Article Information
J. Fan, J. Zhang

Department of Engineering Mechanics, Chongqing University, Chongqing, P.R. China

J. Appl. Mech 65(4), 970-979 (Dec 01, 1998) (10 pages) doi:10.1115/1.2791941 History: Received April 22, 1996; Revised August 14, 1997; Online October 25, 2007

Abstract

In this paper, a five-layer model is proposed to analyze the anisotropic constraint effects on interactive damage progression. Incorporating this model with the general theory of overall moduli of a cracked body, the effective damage factors proposed by Fan and Zhang in 1993 have been extended as quantitative measures for characterizing the anisotropic constraint effects on damage-induced stiffness reduction of general lay-up composites. By applying the first-order shear deformation plate theory to each sublayer these factors are determined and applied for investigating progressive matrix cracking-delamination interaction. Results show that by this rather unique approach, the intractable problem of anisotropic constraint effects of general lay-up composites on interactive damage progression can be handled in a systematic manner.

Copyright © 1998 by The American Society of Mechanical Engineers
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