Modelling of Ti6Al4V Triply Periodic Minimal Surface Manufactured via Selective Laser Melting for Biomaterial Application

摘要

Triply periodic minimal surfaces (TPMS) are becoming increasingly interesting due to bioengineering applications and the developments of additive manufacturing techniques. In the present paper, the architecture of porous scaffolds was utilized to seek an optimized cellular structure subjected to compression loading. The deformation and stress distribution of five lightweight scaffolds, namely Rectangular, Primitive, Lattice, Gyroid, and Honeycomb Ti6Al4V structures, were studied. Comparison of finite element simulations and experimental compressive test results was performed to illustrate failure mechanism of scaffolds. The results showed many similarities between simulations and laboratory tests to assess the mechanical properties of scaffolds. Results of this study can be used for bone implants, biomaterial scaffolds, and antibacterial applications, with respect to the Ti6Al4V scaffold properties built by selective laser melting (SLM).