Abstract
This work is devoted to study the dynamic problems of periodic piezoelectric structures by using the spectral element method (SEM). The dynamic stiffness matrix of the piezoelectric square lattice is formulated by this method. Highly accurate frequency-domain solutions of the lattices with and without piezoelectric beams are obtained. Band gap properties of the piezoelectric square lattices are investigated and the influences of the different contents of piezoceramic layers are analyzed. The behaviors of the waveguide due to material defects are demonstrated. Lattice structures with different central and peripheral parts are designed and their unique dynamic characteristics are also analyzed.
Published Version
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