Abstract
In this study, as one of the most flexible structural optimization methods, so-called topology optimization techniques were numerically applied to structural optimization problems for the intermediate core layers in sandwich composite simply-supported beams with upper and lower facing skin layers of thin aluminum plates under static flexural loads. General-purpose finite element analysis code, MSC Nastran, and its pre-post processor, Patran, were used in the present study, in which the density method (SIMP method), one of the numerical approach, was employed for seeking more light-weight and stiffer intermediate core structures by the optimization process of compliance minimization. From the results being obtained at the current moment, certain optimal inner structures or morphologies possibly could be found out for certain structural and material configurations and typical boundary conditions.
