Design and optimization of 3D fast printed cellular structures

This paper analyzes the effect of thin and thick walls on functional properties 3D printed cell structures, designed from open structures inspired by natural world. Different types unit cells with same density are introduced. The studied in morphology mechanical performance, particular effective density, compressive stiffness, energy absorption under cyclic loading. Material extrusion process thermoplastic polyurethane filament is used as additive manufacturing technique, without any support structure. cellular numerically, using an advanced hyperelastic material model hysteretic capacity, experimentally uniaxial compression testing for characterization stiffness absorption. benefits limitations method highlighted.