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RESEARCH PAPERS

A Simple Higher-Order Theory for Laminated Composite Plates

[+] Author and Article Information
J. N. Reddy

Department of Engineering Science and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, Va. 24061

J. Appl. Mech 51(4), 745-752 (Dec 01, 1984) (8 pages) doi:10.1115/1.3167719 History: Received July 01, 1983; Revised April 01, 1984; Online July 21, 2009

Abstract

A higher-order shear deformation theory of laminated composite plates is developed. The theory contains the same dependent unknowns as in the first-order shear deformation theory of Whitney and Pagano [6], but accounts for parabolic distribution of the transverse shear strains through the thickness of the plate. Exact closed-form solutions of symmetric cross-ply laminates are obtained and the results are compared with three-dimensional elasticity solutions and first-order shear deformation theory solutions. The present theory predicts the deflections and stresses more accurately when compared to the first-order theory.

Copyright © 1984 by ASME
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