A general and effective approach for the optimal design of fiber reinforced composite structures

摘要: This paper presents a general and effective procedure based on mathematical programming approach for composite structures optimal design, under weight, stiffness strength criteria. Effective means that the developed is able to find local optimum in few iterations, even with large number of design variables. In addition, as formulation may include constraints, it shown not only plies thickness but also fiber orientations should be considered Besides this, explained how these angular variables can improve structural performance. The generality related fact optimization technique dedicated particular laminates configurations, reliable problems including isotropic and/or anisotropic materials, well other responses. problem relies direct parameterization terms physical variables, thicknesses, alternative ones like lamination parameters. Numerical applications, non-homogeneous membrane an industrial test case, are presented.