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Modelling and Simulation in Engineering
Volume 2012 (2012), Article ID 171953, 10 pages
http://dx.doi.org/10.1155/2012/171953
Research Article

Buckling Analysis of Laminated Composite Panel with Elliptical Cutout Subject to Axial Compression

Mechanical Department, Islamic Azad University, Shahrood Branch, Shahrood, Iran

Received 21 April 2012; Revised 25 September 2012; Accepted 11 October 2012

Academic Editor: Jing-song Hong

Copyright © 2012 Hamidreza Allahbakhsh and Ali Dadrasi. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A buckling analysis has been carried out to investigate the response of laminated composite cylindrical panel with an elliptical cutout subject to axial loading. The numerical analysis was performed using the Abaqus finite-element software. The effect of the location and size of the cutout and also the composite ply angle on the buckling load of laminated composite cylindrical panel is investigated. Finally, simple equations, in the form of a buckling load reduction factor, were presented by using the least square regression method. The results give useful information into designing a laminated composite cylindrical panel, which can be used to improve the load capacity of cylindrical panels.