Probabilistic analysis of additively manufactured polymer lattice structures

Filigree lattice structures are sensible to geometrical imperfections and the scatter of material parameters which all depend on stability manufacturing process. The aim this study is analyze these effects for polymer incorporate them in a finite element model robust design. Micrographs structure slices show smaller diameter vertical struts. Basic mechanical tests bulk exhibit tension–compression asymmetry captured with Drucker-Prager simulations. Digital image correlation measurements allow determine true properties. Plateau stress failure strain result biggest flaw specimen. Hence, new their probability distribution proposed. This outperforms standard approaches deriving from central moments. A spatial geometric deviations investigated variography subsequently allowing varying properties random fields. Simulations dog-bone specimens that distributions well. Also simulations able represent homogenized whole stress–strain response progression agree well experimental results.