The Effect of Transverse Shear,Rotary Inertia on Wave Propagation in Laminated Piezoelectric Cylindrical Shells in Thermal Environment

Abstract

The effects of transverse shear, rotary inertia and thermal loads on wave propagation in orthotropic laminated piezoelectric cylindrical shells are studied in this paper. A dynamic model of laminated piezoelectric cylindrical shell is derived based on Cooper-Naghdi shell theory. The wave characteristics curves are obtained by solving an eigenvalue problem. Besides discussing the dispersion curves for different wave modes, effects of layer numbers, the thickness of piezoelectric layers and thermal environment on the wave characteristics curves were also studied. This solution method is validated by the classical solution of an elastic shell, and may be used to investigate wave propagation in laminated piezoelectric cylindrical shells with various laminated materials, layer numbers and thickness, in thermal environment.

Keywords

laminated piezoelectric cylindrical shells wave characteristics curves transverse shear and rotary inertia thermal load.

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