Movie S5.

Impact in a magnetic metamaterial with attractive magnets (Q=1) and elliptical pores a0=0.17b0 and w0=0.14L0. The free-falling of a weight hung by the metamaterials is triggered by a customized platform at time t =0 ms. The vibration decays rapidly, with a decay time of about 0.2 s. Elasto-magnetic metamaterials absorbed most of the impact energy via the phase transitions, only returning a small part to the mass for vibrations.

Phase-transforming metamaterial with magnetic interactions

Xudong Liang, Hongbo Fu, and Alfred J. Crosby

PNAS. 2022. 119:None-None DOI: 10.1073/pnas.2118161119