Mechanical Properties of Lattice Specimens Having a Triangular Pattern with Different Relative Densities

This study experimentally investigates the mechanical properties of lattice specimens with triangular unit cells using a tensile test, including Young’s modulus and yield strength. The lattice specimens made of 316L stainless steel are fabricated by a metal 3D printer. The mechanical properties of the lattice specimens with different relative densities are studied. Formulas of the normalized Young’s modulus and normalized yield strength of the lattice structure obtained from the literature are used to validate the experimental results. The discrepancies between the normalized results obtained from the experiment and the formulas are also discussed.