Material with proisotropic stress response structure

A component comprising:

• a core comprising a plurality of repeating open unit cells, each open unit cell of the plurality of repeating open unit cells comprising intersecting polygonal planes of a material and an open space, wherein the plurality of repeating open unit cells provides an isotropic specific energy absorption to the component;
• wherein each open unit cell of the plurality of repeating open unit cells includes a through hole that extends from a first side of the each open unit cell to a second side of the each open unit cell;
• wherein, when the component is under stress, one or more of the intersecting polygonal planes of the plurality of repeating open unit cells exhibits rigid body rotation before exhibiting plastic deformation;
• wherein each open unit cell of the plurality of repeating open unit cells comprises three mutually orthogonal planes of symmetry;
• wherein an arrangement of the intersecting polygonal planes is varied to provide at least one unit cell of the plurality of repeating open unit cells, in isolation, with an anisotropic material property;
• and
• wherein the anisotropic material property comprises thermal conductivity, crush force efficiency, Poisson's ratio, compression modulus, shear modulus, yield strength, or crush strength.