A general strategy for the optimal design of laminated composites by the polar-genetic method

Download or read book A general strategy for the optimal design of laminated composites by the polar-genetic method written by Mohammad Réza Ahmadian and published by . This book was released on 2007 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis, we introduce a new global approach to the optimal design of laminated composites. This method uses the polar representation of plane tensors and the design of laminates is formulated as a constrained optimization problem without any pre-defined simplifying hypothesis. The design variables are all the constitutive parameters of the laminate. The first part of the thesis concerns the creation of a suitable genetic algorithm, BIANCA, able to handle any constrained/unconstrained and multi-objective optimization problems, and which is rich in its architecture and information representation.The genetic algorithm BIANCA is successfully applied to the resolution of optimal design problems for composite laminates, as they are formulated by our polar approach. Several practical cases are treated, and through an extended series of examples, we show the effectiveness and robustness of the polar-genetic method for the optimal design of composite laminates.