3D auxetic fabrics. They expand (or contract) in the direction perpendicular to stretch (or
compression) under uniaxial tensile (or compressing) conditions. Many enhanced properties
come with this unusual auxetic behaviour, such as shear modulus, indentation resistance,
fracture toughness, energy absorption, synclastic curvature, etc. Therefore, these 3D auxetic
metamaterials have a broad prospect in applications like personal protective equipment as a …