Fig. 9
From: Computationally efficient design of directionally compliant metamaterials
Directionally compliant metamaterial (DCM) shape affects degrees of freedom (DOFs). a A bulk shape that achieves a translational DOF but would, b achieve two translational DOFs if the shape were rotated 90o and used inside of itself. c The freedom space of a DCM results from the sum of its architecture’s freedom space and its bulk shape’s freedom space. d DCM was additively fabricated and, e, f tested in two different directions. g The stiffness in both directions are the same (scale bar in d, 5 cm)
