ABSTRACT
The mechanical properties of origami folding pattern core sandwich plates made of A1Si10Mg aluminum alloy have been investigated in this paper. The sandwich panel was fabricated using 3D printing technology and tested under a quasi-static out-of-plane compressive load. An explicit Finite Element Analysis (FEA) of Miura-ori models was developed and validated using the experimental results. Furthermore, parametric studies were performed on Miura-ori models that were subjected to quasi-static out-of-plane compression, through which the relationships between the mechanical properties and the geometric parameters were established. The results show that the compressive strength of the sandwich structure with a Miura-ori core decreased approximately linearly with the increase of the folding angle, and first increased and then decreased with the increase of the dihedral angle a. Finally, the mechanical properties of sandwich structures with a Miura-ori core and with a zigzag-based core were compared. It was shown that they have almost equal performance in terms of compressive force.
