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Computers & Structures
Volume 70, Issue 6, March 1999, Pages 615-623
 
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doi:10.1016/S0045-7949(98)00200-4    How to Cite or Link Using DOI (Opens New Window)
Copyright © 1999 Elsevier Science Ltd. All rights reserved

Application of differential quadrature method to the delamination buckling of composite plates

S. Moradia and F. Taheria, *

a Dalhousie University, P.O. Box 1000, Halifax, Nova Scotia, Canada, B3J 2X4

Received 12 December 1996;
revised 31 July 1997;
accepted 10 August 1998.
Available online 17 February 1999.

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Abstract

The delamination buckling response of a composite panel containing through-the-width delamination is numerically modeled using a solution that is based on the differential quadrature method (DQM). The composite is modeled as a general one-dimensional beam–plate having a through-the -width delamination that can be at any arbitrary location through its thickness; hence, dividing the domain into four regions. The DQM is applied to each region and with the imposition of appropriate boundary conditions, the problem is transformed into a standard eigenvalue problem. Numerical results are presented, illustrating the stability and validity of the method. The results also demonstrate the efficiency of the method in treating this class of engineering problem.

Author Keywords: Differential quadrature; Delamination; Buckling; Composites; Numerical methods; Grid spacing; Sampling-point schemes

Article Outline

1. Introduction
2. Differential quadrature method
3. Choice of the sampling points
4. Delamination buckling
5. Numerical results and discussion
6. Number of sampling points
7. Effect of grid spacing
8. Concluding remarks
Acknowledgements
References







Computers & Structures
Volume 70, Issue 6, March 1999, Pages 615-623
 
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