Study of optimization of composite structures with respect to industrial applications

This paper analyses the existing methodology of employing optimization techniques for structuraloptimisation of laminated composites at part level (local optimization) and also the limitations of this part level structural optimisation approach in industrial applications. The deviations observed in optimisation problem definition due to implementation of part level optimized solution at the assembly level (global optimisation) are presented. Multi shell closed structure is considered to carry out the numerical experiments, due to the reason; most of the structures of aircraft wing, wind turbine blade and helicopter rotor blades exhibit this configuration. Part level optimization is carried out on a single plate element of a multi shell closed structure and the optimized plate element is replaced in the multi shell closed structure. The observations made after replacement of optimized plate element through performing the numerical experiments are presented and well discussed.