Fig. 1
From: Compliant rolling-contact architected materials for shape reconfigurability

Introduction to compliant rolling-contact architected materials (CRAMS). a An auxetic architected material and other common building blocks used within existing shape-reconfigurable examples. b Compliant rolling-contact joint (CRJ) proposed as the building block for enabling the proposed CRAM lattices. c A square-tessellated CRAM example. d A shape-morphing airfoil consisting of differently shaped cams arranged in an aperiodic way