Damage-induced failure analysis of additively manufactured lattice materials under uniaxial and multiaxial tension

Mechanical behavior of additively manufactured lattice materials has been mainly investigated under uniaxial compression, while their performance and multiaxial tension are yet to be understood. To address this gap, a generic elastoplastic homogenization scheme with continuum damage model is developed, three different materials, namely cubic, modified face-center cubic body-center analyzed uniaxial, biaxial triaxial tension. The influence micro-architecture on the material’s failure as well its macroscopic mechanical thoroughly discussed. For validation, set tensile experiments conducted functionally graded samples that using Electron Beam Melting (EBM) process. Digital image correlation technique employed obtain stress–strain curves, manufacturing imperfections inspected light omitting microscopy. It turns out as-built could substantially differ from numerical predictions. Thus, defect-informed accommodate effect imperfections. outcome in very good agreement experimental data, indicating proper input developed can accurately predict given material.