Buckle up! A new class of materials is here

Science Daily  June 2, 2023 Many passive damping methods rely on using low stiffness, complex mechanical structures, or electrical systems, which render them unfeasible in many of applications. Researchers in the Netherlands have developed a new method for passive vibration damping by allowing buckling of the primary load path in mechanical metamaterials and lattice structures, which sets an upper limit for vibration transmission: the transmitted acceleration saturates at a maximum value in both tension and compression, no matter what the input acceleration is. This nonlinear mechanism leads to an extreme damping coefficient —orders of magnitude larger than the linear damping […]