Compressive Deformation, Damage Evolution, and Energy Absorption of 3D-Printed PLA and Short-Carbon-Fiber-Reinforced PLA Auxetic Metamaterials
Auxetic mechanical metamaterials convert axial compression into lateral contraction, providing deformation modes that are attractive for lightweight energy absorbers. Here, fused deposition modeling was used to fabricate polylactic acid (PLA) and 10 wt% short-carbon-fiber-reinforced PLA (CF/PLA) auxetic metamaterials w...