抄録
In this study, the topology optimization was applied to structural lightening of the core layers in sandwich composite beams. Then, the optimized core layer which achieved both the highest weight reduction and rigidity was molded with a FDM 3D printer. Three point flexural test was carried out for experimentally evaluating mechanical properties of the present topology-optimized sandwich beam. In addition, finite element method (FEM) numerical analysis was also conducted for the flexural test. As a result, both of the compliances of experimental and numerical results were found to be in a good agreement, which shows the present topology optimization for composite sandwich beams is very effective for the structural lightening design.
