Analytical and Numerical Models of Postbuckling of Orthotropic Symmetric Plates
Publication: Journal of Engineering Mechanics
Volume 136, Issue 10
Abstract
Two analytical perturbation methods which give approximate solutions of postbuckling behavior of orthotropic simply supported plates are considered in this work: the method of Chandra and Raju and the method of Shen and Zhang. The reproduction of the algebraic developments of these methods by the Mathematica symbolic manipulator program has revealed that there are errors in the formulas included in the original paper by Chandra and Raju. After a revision and correction of these errors, the analytical results of both methods for a set of 23 orthotropic plates are compared, an excellent agreement being found for a wide range of values of geometrical and mechanical parameters in which many actual plates lie. A numerical simulation performed on a reduced sample of six plates using finite-element code ABAQUS has validated analytical results. The present work is intended as a first step in the investigation of the possibility of using reliable analytical formulas in the design of composite plates.
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Acknowledgments
The kind help of Professor Hui-Shen Shen in clarifying to the writers some points of the algebra involved in his works is gratefully acknowledged.
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Information
Published In
Journal of Engineering Mechanics
Volume 136 • Issue 10 • October 2010
Pages: 1299 - 1308
Copyright
© 2010 ASCE.
History
Received: May 12, 2008
Accepted: Mar 22, 2010
Published online: Mar 24, 2010
Published in print: Oct 2010
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