Behavior of additively manufactured lattice structures unter compressive loading

Abstract

Lattice structures are attractive in additive manufacturing technology as they are small, lightweight, and especially scaleable. Closely spaced diagonal elements absorb energy through elastic and plastic deformation within a lattice, but the performance depends on many factors like design, material properties, printing process, post‐treatment, etc. Here, we determine the material properties of two types of stereolithography printed specimens and investigate the truss‐radius dependent performance of bcc, fcc, and octet lattice structures. A simulation using the experimental parameters shows that the maximum arising stresses are located at the positions where material failure was observed.