RESEARCH PAPERS: Reliability and Failure Analysis

Approximate Design Analysis of Failure Within Composite Laminated Plates

[+] Author and Article Information
R. L. Gallo

Air Force Wright Aeronautical Laboratory, Wright-Patterson Air Force Base, Ohio 45433

A. N. Palazotto

Air Force Institute of Technology, Wright-Patterson Air Force Base, Ohio 45433

J. Mech. Des 104(3), 604-611 (Jul 01, 1982) (8 pages) doi:10.1115/1.3256394 History: Received October 13, 1981; Online November 17, 2009


This paper is an analytical study of the effects of interlamina stresses near the free edge of a laminated plate due to axial and moment loading variations. A three-dimensional extension of the Tsai-Hill failure criterion is introduced to predict delamination. Results achieved by computer simulation show good agreement with experimental observations made by other sources. The distance from the free edge is decidedly important as is the effect of curing temperature because of the consequences these parameters have on the magnitude of the stress field. The failure estimations provide an approximate bound and are worthy of due consideration by the design engineer in the stress analysis of test specimens.

Copyright © 1982 by ASME
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