Extended Data Fig. 5: Material calibration and sample fabrication.
From: Harnessing plasticity in sequential metamaterials for ideal shock absorption
a, Stress–strain curve of 3D-printed 316L steel, for which we linear fit the elastic modulus and tangent modulus. The fits provide measurements for Young’s modulus E ≈ 200 GPa, yield stress σy ≈ 500 MPa, and tangent modulus Et ≈ 500 MPa. b, 3D-printed metamaterial with 316L stainless steel. Supports are added at the overhang edges along the printing direction (left) and are removed after printing (right). c, Milled metamaterial from a 316L stainless steel tube.
