Realizable seismic cloak via polar metamaterials

This is the authors' abstract. We don't add key points for this paper.

Transformation elastodynamics can be used to redirect incident waves to mitigate harmful vibrations in the target region. Under the specific Brun–Guenneau–Movchan gauge, the elastic tensor of the transformed domain lacks minor symmetry. Here, we propose a physically realizable seismic cloak composed of lattice-based polar metamaterials capable of exhibiting asymmetric stresses. Both static and dynamic simulations validate the cloaking performance. A metric is calculated to quantify the protective effects, and results demonstrate satisfactory cloaking and aseismic protection across a wide frequency band.