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Maximising the buckling loads of symmetrically laminated composite rectangular plates using a layerwise optimisation (LO) approach.

Narita, Y. and Turvey, Geoffrey J. (2004) Maximising the buckling loads of symmetrically laminated composite rectangular plates using a layerwise optimisation (LO) approach. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 218 (7). pp. 681-691. ISSN 0954-4062

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Abstract

Research on optimum lay-ups and buckling loads of laminated plates is briefly reviewed. A new sequential, iterative procedure, known as layerwise optimization (LO), for determining the optimum lay-ups and maximum buckling loads of symmetrically laminated rectangular plates is described. The physical basis of the procedure is explained. LO is shown to be highly efficient, with reductions in computational effort of more than 99 per cent being possible in comparison to some simultaneous optimization procedures. Three examples are presented of the use of the LO procedure to determine the optimum lay-ups and associated maximum buckling loads of 8- and 24-layer symmetrically laminated rectangular plates subjected to uniform, uniaxial and biaxial compression. For 18 combinations of free, simply supported and clamped edge conditions, it is shown that the LO procedure generally leads to the optimum solution. In the very few instances where a local rather than a global solution was obtained, the maximum buckling load was only 4-6.5 per cent lower than the optimum value.

Item Type: Article
Journal or Publication Title: Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
Uncontrolled Keywords: buckling loads ; optimum lay-ups ; symmetrically laminated composite ; rectangular plates ; layerwise optimization ; compression
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Departments: Faculty of Science and Technology > Engineering
ID Code: 20123
Deposited By: ep_ss_importer
Deposited On: 10 Dec 2008 16:27
Refereed?: No
Published?: Published
Last Modified: 24 Jan 2014 05:14
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/20123

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