Multicriterion optimization of composite laminates for maximum failure margins with an interactive descent algorithm

An interactive multicriterion optimization method for composite laminates subjected to multiple loading conditions is introduced. Laminate margins to initial failure (First Ply Failure, FPF) with respect of the applied loading conditions are treated as criteria. The original problem is reduced to a bicriterion problem by introducing parameters to combine linearly some criteria. The problem is solved by using an interactive descent algorithm. Both the conditions required for a discrete procedure to converge towards a Pareto optimum and numerical examples are given.