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Buckling optimization of composite panels via lay-up tables

Carpentier, Alban and Michel, Laurent and Grihon , Stéphane and Barrau, Jean-Jacques Buckling optimization of composite panels via lay-up tables. (2006) In: III European Conference on Computational Mechanics Solids, Structures and Coupled Problems in Engineering, 05-09 Jun 2006, Lisbon, Portugal .

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Abstract

Commonly, composite panel optimization is based on a multi-level strategy. An important step of the strategy is to optimize the stacking sequence. In this paper, we are interested in this step through lay-up table optimization towards buckling. A lay-up table is used to define the stacking sequence associated with each integer thickness of the skin and to insure lay-up continuity between different thicknesses. A genetic algorithm performs the optimization of the lay-up table with a chromosome coding of lay-up table meeting directly the requirements of lay-up continuity between different thicknesses. The fitness function used in this study is a multi-objective one: - The first objective concerns percentages coming from the first level thickness law. - The second one concerns buckling behavior - And the last one deals with limitation of inter-laminar shear stresses. Two examples illustrate the ability of this methodology to provide optimized lay-up tables.

Item Type:Conference or Workshop Item (Paper)
Additional Information:This paper appears in :III european conference on computational mechanics: solids, structures and coupled problems in engineering: book of abstracts/SOARES C.A. Mota, June 2006. ISBN 978-1-4020-4994-1
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution: Université de Toulouse > Ecole des Mines d'Albi-Carmaux - EMAC
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE
Other partners > Airbus (FRANCE)
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA
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Deposited By: Laurent MICHEL

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