Optimum Stacking Sequence Design of Composite Sandwich Panel Using Genetic Algorithms

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In the present study, both critical buckling load maximization and face-sheet laminate thickness minimization problems for the composite sandwich panel, subjected to bi-axial compressive loading under various imposed constraints have been investigated using genetic algorithms. In the previously published work, the optimization of simple composite laminate panels with only even number of laminae has been considered [1, 3]. The present work allows the optimization of a composite sandwich panel with both even and odd number of laminae in the face-sheet laminates. Also, the effects of the bending-twisting coupling terms (D16 and D26) in bending stiffness matrix which were neglected in the previous studies [1, 2, 3], are considered in the present work for exact solutions. In addition effect of both balanced and unbalanced face-sheet laminates on the optimum solutions have also been investigated, whereas only balanced laminates were considered in the previous studies [1, 2, 3].

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Edited by:

B.S.S. Daniel and G.P. Chaudhari

Pages:

29-33

Citation:

A. S. Bir et al., "Optimum Stacking Sequence Design of Composite Sandwich Panel Using Genetic Algorithms", Advanced Materials Research, Vol. 585, pp. 29-33, 2012

Online since:

November 2012

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$38.00

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DOI: https://doi.org/10.1016/0961-9526(95)90710-s

[2] Le Riche R., Haftka R. T. (1993), Optimization of Laminate Stacking Sequence for Buckling Load Maximization by Genetic Algorithm, AIAA Journal 31 (5) 951-956.

DOI: https://doi.org/10.2514/3.11710

[3] Haftka R. T., Walsh J. L., Stacking-Sequence Optimization for Buckling of Laminated Plates by Integer Programming, AIAA Journal. 970 (1991) 267-274.

DOI: https://doi.org/10.2514/6.1991-970

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[5] Kollár L. P., Springer G. S., Sandwich Plates, in: Mechanics of Composite Structures, Cambridge University Press, New York, (2003).