Abstract
Based on linear three-dimensional piezoelasticity, an orthogonal polynomial series expansion approach is used to determine the characteristics of guided circumferential waves in homogeneous anisotropic piezoelectric cylindrical curved plates. The displacement components and electrical potential, expanded in a series of Legendre polynomials, are introduced into the governing equations along with position-dependent material constants, so that the solution of the wave equation is reduced to an eigenvalue problem. The dispersion curves for PZT-4 and Ba 2 NaNb 5 O 15 cylindrical curved plates are calculated. The effect of piezoelectricity is also shown. Mechanical displacement distribution and electric potential distribution are illustrated and the influence of the radius to thickness ratio on the circumferential wave characteristics is discussed. Finally, the influence of the polarizing direction on the piezoelectric effect is shown.
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