Local Delamination Buckling in Layered Systems

[+] Author and Article Information
E. Madenci

Department of Aerospace and Mechanical Engineering, University of Arizona, Tuscon, AZ 85721

R. A. Westmann

Mechanical, Aerospace and Nuclear Engineering Department, University of California, Los Angeles, CA 90024-1597

J. Appl. Mech 58(1), 157-166 (Mar 01, 1991) (10 pages) doi:10.1115/1.2897143 History: Received June 22, 1988; Revised January 15, 1990; Online March 31, 2008


This paper presents an analytical solution to the problem of local buckling induced by delamination of a layered plate. Delamination growth and buckling is an observed failure mode in laminated structures subjected to compressive loads. Previous analytical studies of the phenomenon rest upon simplifying structural and geometric approximations. The purpose of this paper is to present solutions for this problem using the classical three-dimensional theory of elasticity to predict the buckled equilibrium state. Solutions to the problem of a plate with a circular delamination subjected to axisymmetric and uniaxial in-plane compressive loadings are obtained using mathematical techniques appropriate for mixed boundary value problems.

Copyright © 1991 by The American Society of Mechanical Engineers
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