Post-buckling of Geometrically Imperfect Shear-Deformable Flat Panels Under Combined Thermal and Compressive Edge Loadings

[+] Author and Article Information
L. Librescu

Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0219

M. A. Souza

Pontificia Universidade Catholica do Rio de Janeiro, Rio de Janeiro, Brazil

J. Appl. Mech 60(2), 526-533 (Jun 01, 1993) (8 pages) doi:10.1115/1.2900825 History: Received May 01, 1992; Revised October 21, 1992; Online March 31, 2008


The static post-buckling of simply-supported flat panels exposed to a stationary nonuniform temperature field and subjected ’to a system of subcritical in-plane compressive edge loads is investigated. The study is performed within a refined theory of composite laminated plates incorporating the effect of transverse shear and the geometric nonlinearities. The influence played by a number of effects, among them transverse shear deformation, initial geometric imperfections, the character of the in-plane boundary conditions and thickness ratio are studied and a series of conclusions are outlined. The influence played by the complete temperature field (i.e., the uniform through thickness and thickness-wise gradient) as compared to the one induced by only the uniform one, is discussed and the peculiarities of the resulting post-buckling behaviors are enlightened.

Copyright © 1993 by The American Society of Mechanical Engineers
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