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Multiobjective stacking sequence optimization for laminated composite structures |
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| Authors: | François-Xavier Irisarri David Hicham Bassir Nicolas Carrere Jean-François Maire |
| Affiliation: | 1. ONERA/DMSC (French Aerospace Lab.), Châtillon, France;2. UTBM/Institute FEMTO-ST, UMR 6174 Besançon, France;3. Faculty of Aerospace Engineering, TU Delft, The Netherlands;1. Arts et Métiers ParisTech, I2M CNRS UMR 5295, F-33400, Talence, France;2. Bordeaux INP, Université de Bordeaux, I2M CNRS UMR 5295, F-33400, Talence, France;1. Onera, The French Aerospace Lab, F-92322 Châtillon, France;2. École Nationale Supérieure des Mines de Saint-Étienne, F-42023 Saint-Étienne, France;3. CNRS LIMOS UMR 6158, France |
| Abstract: | A Pareto-based multiobjective evolutionary algorithm is presented for stacking sequence optimization of composite structural parts. Special attention has been paid to engineering design guidelines for stacking sequence design. These guidelines are included into the formulation of the optimization problem as constraints or additional objectives. A new initialization strategy is proposed following mechanical considerations. The method is applied to the optimal design of a composite plate for weight minimization and maximization of the buckling margins under three hundred load cases that make also the originality of this work. It is shown that the introduction of new ply orientations compared to the classical 0°, ±45° and 90° plies can lead to significantly improved optimal designs. |
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