Magnetically Assisted Rotationally Multistable Metamaterials for Tunable Energy Trapping–Dissipation (Adv. Funct. Mater. 52/2022)

Rotationally Multistable MetamaterialsIn article number 2207581, Abdolhamid Akbarzadeh and Alireza Seyedkanani introduce a motif for rotational multistability by harnessing magnetic interactions between permanent magnets arranged in a circular formation as rotational magnet pairs. This scale-independent concept is used to develop rotationally multistable metamaterials with tunable energy trapping characteristics and a novel fluid-free rotary metadamper with periodic snap-back induced energy dissipation that can find applications in rotational elements such as robot joints and rotor shafts.