| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Antonio, Cac
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2017Multiobjective optimization of mechanical properties based on the composition of adhesivescitations
- 2016Optimal design of adhesive composition in footwear industry based on creep rate minimizationcitations
- 2015Surface treatment effect in thermoplastic rubber and natural leather for the footwear industrycitations
- 2015Effect of the surface treatment in polyurethane and natural leather for the footwear industrycitations
- 2012A variability study on the response of composite structures based on sensitivity indices
- 2006A hierarchical genetic algorithm with age structure for multimodal optimal design of hybrid compositescitations
- 2004Preform optimal design in metal forging using genetic algorithmscitations
- 2004Optimisation of shape and process parameters in metal forging using genetic algorithmscitations
- 2002Optimal cutting conditions in turning of particulate metal matrix composites based on experiment and a genetic search modelcitations
- 2002A multilevel genetic algorithm for optimization of geometrically nonlinear stiffened composite structurescitations
- 2001Optimal drilling of particulate metal matrix composites based on experimental and numerical procedurescitations
- 2001Optimisation of cutting conditions in machining of aluminium matrix composites using a numerical and experimental modelcitations
- 2000A multilevel approach to optimization of bulk forming processes
- 2000An approach to reliability based design of composite structures under dynamic response
Places of action
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article
A multilevel genetic algorithm for optimization of geometrically nonlinear stiffened composite structures
Abstract
A multilevel genetic algorithm aiming the global optimization of beam reinforced composite structures with nonlinear geometric behaviour is proposed. A unified approach based on load-displacement control for buckling and first ply failure analysis is adopted. The Newton-Raphson iterative scheme and the arc-length method are used for tracing the equilibrium path and later for updating the critical values. The proposed genetic algorithm performs several sequences of two optimization levels resulting from the decomposition of the original optimization problem. Independent genetic searches are implemented for each level where different fitness functions and sub-populations are considered. The genetic operators selection and crossover supported by an elitist strategy are used while the diversity of the sub-populations is guaranteed based on implicit mutation. A genetic material exchange between levels is performed using clones and so the offspring of matured sub-populations is guaranteed. To improve the efficiency of the multilevel genetic optimization a niche of population is induced after the first stage at both levels.