Highly anisotropic elements for acoustic pentamode applications.

摘要: Pentamode metamaterials are a class of acoustic metafluids that characterized by divergence free modified stress tensor. Such materials have an unconventional anisotropic stiffness and isotropic mass density, which allow themselves to mimic other fluid domains. Here we present pentamode design formed oblique honeycomb lattice producing customizable properties. It is shown anisotropy in the can exceed 3 orders magnitude, it be realistically tailored for transformation applications.