Numerical and Experimental Investigation of 3D Printed Origami Unit Cells and Cores for Load Resistance

摘要

Origami cores have the advantage of stiffness to weight ratio over conventional sandwich cores. The main idea ofdesigning sandwich cores is to have low-density structure with high stiffness, that allows the sandwiches towithstand compression and impact loads. Recently, the implementation of origami cores in sandwich structures hasattracted engineers to design and investigate different types of origami cores for compression and impactapplications. Such cores can give the sandwich structure, high stiffness to weight ratio, and they can dissipate theincoming loads by high strain deformation. In this work, we study numerically and experimentally, two differentorigami configurations; the study investigates origami unit cells’ and cores’ stiffness and load resistance. Origamiunit cells and cores are fabricated with fused deposition modeling. The results of the numerical simulation validatedwith the experimental results.