Portal de Periódicos da CAPES

Vibrant times for mechanical metamaterials

2015; Springer Nature; Volume: 5; Issue: 3 Linguagem: Inglês

10.1557/mrc.2015.51

2159-6859

Johan Christensen, Muamer Kadic, Martin Wegener, Oliver Kraft, Martin Wegener,

Acoustic Wave Phenomena Research

Abstract Metamaterials are man-made designer matterthat obtains its unusual effective properties by structure rather than chemistry. Building upon the success of electromagnetic and acoustic metamaterials, researchers working on mechanical metamaterials strive at obtaining extraordinary or extreme elasticity tensors and mass-density tensors to thereby mold static stress fields or the flow of longitudinal/transverse elastic vibrations in unprecedented ways. In this prospective paper, we focus on recent advances and remaining challenges in this emerging field. Examples are ultralight-weight, negative mass density, negative modulus, pentamode, anisotropic mass density, Origami, nonlinear, bistable, and reprogrammable mechanical metamaterials.