In this study, the shell structure of olives in nature was modeled, and a high-porosity bionic olive body-centered cubic structure (BCCO) with reinforcement structures of circular support (BCCR) and triangular support (BCCT) with excellent mechanical properties was designed and prepared using selective laser melting technology. The surface morphology, deformation behavior, and energy absorption of BCCO were compared with those of the equivalent uniform body-centered cubic structure (BCC) and analyzed through quasi-static compression experiments and finite element analysis. The olive-shaped structure showed optimal load resistance when the radius of curvature was equal to the edge length of the lattice structure, and outperformed with a larger curvature than with a smaller curvature. With the added support structure, the energy absorption of the BCCR increased by 144.44 % compared with that of the conventional BCC structure. The newly designed olive bionic structure has considerable potential for applications in various fields, such as aerospace and medical devices.
Shi et al. (Thu,) studied this question.