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Structural Engineering and Mechanics Volume 71, Number 1, July10 2019 , pages 23-35 DOI: https://doi.org/10.12989/sem.2019.71.1.023 |
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Electro-elastic analysis of functionally graded piezoelectric variable thickness rotating disk under thermal environment |
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Mohammad Arefi and Sina Kiani Moghaddam
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| Abstract | ||
| In this study we derive the governing equations of a functionally graded piezoelectric disk, subjected to thermo-electro-mechanical loads. First order shear deformation theory is used for description of displacement field. Principles of minimum potential energy is used to derive governing equations in terms of components of the displacement field and the electric potential. The governing equations are derived for a disk with variable thickness. The numerical results are presented in terms of important parameters of the problem such as profile of variable thickness, in-homogeneous index and other related parameters. | ||
| Key Words | ||
| electro-elastic; functionally graded piezoelectric disk; variable thickness; first order shear deformation theory | ||
| Address | ||
| Faculty of Mechanical Engineering, Department of Solid Mechanics, University of Kashan, Kashan 87317-51167, Iran | ||