Flexural Properties Of Arch Lattice Structures Manufactured By Selective Laser Melting

Lattice structure has a broad application in the fields of aerospace, automobile, bio-medical treatment and energy. It is very suitable for the applications of secondary load-bearing components, because of its characteristics of low density, high specific strength, and high specific stiffness. The flexural property is an important index of the material used in the secondary load-bearing components. In this study, the flexural properties of ARCH lattice structure fabricated by selective laser melting (SLM) under different loading directions and with different relative densities are simulated and experimentally researched. The results show that ARCH lattice structure has better flexural properties under Y loading direction. The relative density has a great influence on the flexural properties of ARCH lattice structures. Moreover, the Gibson-Ashby equation is also established to estimate the flexural properties of the lattice structures with different relative densities, which can provide a theoretical basis and reference to the engineering application of ARCH lattice structures.