Large Deflection Behavior of Simply Supported Laminated Panels Under In-Plane Loading

[+] Author and Article Information
Y. Zhang

Shenyang Aircraft Company, China

F. L. Matthews

Aeronautics Department, Imperial College, London, England SW72BY

J. Appl. Mech 52(3), 553-558 (Sep 01, 1985) (6 pages) doi:10.1115/1.3169100 History: Received July 01, 1982; Revised August 01, 1984; Online July 21, 2009


An analysis is presented for nonbifurcational behavior of flat and curved panels of unsymmetrically laminated composite materials under in-plane loading, either compression or shear. A pair of governing equations in the von Karman sense are solved in conjunction with simply supported boundaries. A series of computations is carried out for panels having different curvatures, different lay-ups, and different materials. The results show that during loading, lateral deflection is involved in panels with unsymmetric cross-ply layers under compression or in those with unsymmetric angle-ply layers under shear. This effect increases deflection of the flat plates under loading and reduces resistance of curved panels against collapse.

Copyright © 1985 by ASME
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