Elastic Wave Propagation in a Cement-Based Piezoelectric Metamaterial Plate by Using Fem

In this paper, cement-based piezoelectric composite materials are introduced into phononic crystals to form a local resonant metamaterial plate. The band gap structure of the metamaterial plate is calculated by the finite element method (FEM). The electrical open and shorted boundary conditions are considered, and the effects of lattice constant, material composition ratio, different metal materials, and geometric parameters of the metamaterial plate on the band gap are also discussed in detail. The results show that the metamaterial plate can obtain ultra-broad band gaps with appropriate material and geometric parameters.