Non-linear mechanics of mechanical metamaterials

Abstract

To elucidate the static and dynamic behaviors of mechanical metamaterials, we mechanistically constructed a metamaterial structure using bars, discs, springs, and bolts, and conducted in-situ tensile experiments. We found that the system undergoes multiple structural transformations by an imposed strain. We inferred that the multi-stability and bifurcation play an important role in non-linear mechanics of mechanical metamaterials.