Analytical Solution for Response of Piezoelectric Cylinder Under Electro-Thermo-Mechanical Fields

Subject Areas : Engineering

S Golabi ¹ , J Jafari Fesharaki ²

1 - Department of Mechanical Engineering, University of Kashan
2 - Department of Mechanical Engineering, University of Kashan

Received: 2013-06-03 Accepted : 2013-08-20 Published : 2013-12-30

Keywords: Analytical solution, Piezoelectric, Cylinder, Two-Dimensional, Thermo elasticity, Fourier series,

Abstract :

This paper presents an analytical solution for response of a piezoelectric hollow cylinder under two-dimensional electro thermo mechanical fields. The solution is based on a direct method and the Navier equations were solved using the complex Fourier series. The advantage of this method is its generality and from mathematical point of view, any type of the thermo mechanical and electrical boundary conditions can be considered without any restrictions. The thermo mechanical and electrical displacements are assumed that vary in radial and circumferential directions. Finally, three examples were considered to confirm the results and investigate the effect of in-phase and opposite-phase electro thermo mechanical boundary loads on two-dimensional electro thermo mechanical behavior of piezoelectric hollow cylinder. The results are compared with the previous work and FEM analysis. The main result of this study is that, by applying a proper distribution of thermal, electrical and mechanical fields, the distributions of electric and mechanical displacement, thermal and mechanical stresses can be controlled.

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