Resistance of Singly-Curved Sandwich Shells with Metal Microlattice Core under Transverse Loading

Microlattices often show a higher strength-to-weight ratio and energy absorption than other porous materials, due to its smart geometry. nowadays basic efforts are made to study mechanical behavior of sandwich structures with microlattice core, in most of the studies, the sandwich geometry is flat. Curved sandwich structure with microlattice core, due to its curved geometry and outstanding advantages of microlattice, can provide a structure with high resistance and efficiency. In the present study, flat and curved sandwich microlattices are simulated by Abaqus software and the structures are analyzed under transvers loading. The results of the analysis for a unit cell are compared with the results of previous studies and the efficiency and accuracy of the present modeling are confirmed. The studied models have different curvature and face-sheets thickness. The results show a slight increase in the face-sheets thickness or curvature yields a significant increase in the resistance of these sandwich structures.