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Global buckling of composite plates containing rectangular delaminations using exact stiffness analysis and smearing method

Damghani, Mahdi, Kennedy, David and Featherston, Carol Ann 2014. Global buckling of composite plates containing rectangular delaminations using exact stiffness analysis and smearing method. Computers & Structures 134 , pp. 32-47. 10.1016/j.compstruc.2013.12.005

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Abstract

The global buckling of a composite plate with a single rectangular delamination is studied using a smearing method and employing exact stiffness analysis and the Wittrick–Williams algorithm. Computational efficiency is achieved by avoiding discretisation into elements and non-linear analyses, making the method suitable for parametric studies in preliminary aircraft design. Numerical results for longitudinal compressive loading show the level of reduction in buckling load with increasing length and width of delamination. Global buckling strength is increased as the delamination is moved towards the plate surface, but is relatively insensitive to its widthwise and lengthwise location. The results are validated by finite element analysis.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Publisher: Elsevier
ISSN: 0045-7949
Last Modified: 17 Jun 2019 02:27
URI: http://orca.cf.ac.uk/id/eprint/64022

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