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Smart Structures and Systems Volume 15, Number 5, May 2015 , pages 1345-1362 DOI: https://doi.org/10.12989/sss.2015.15.5.1345 |
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The effect of different functionalities of FGM and FGPM layers on free vibration analysis of the FG circular plates integrated with piezoelectric layers |
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M. Arefi
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| Abstract | ||
| The present paper deals with the free vibration analysis of the functionally graded solid and annular circular plates with two functionally graded piezoelectric layers at top and bottom subjected to an electric field. Classical plate theory (CPT) is used for description of the all deformation components based on a symmetric distribution. All the mechanical and electrical properties except Poisson;s ratio can vary continuously along the thickness direction of the plate. The properties of plate core can vary from metal at bottom to ceramic at top. The effect of non homogeneous index of functionally graded and functionally graded piezoelectric sections can be considered on the results of the system. 1st and 2nd modes of natural frequencies of the system have been evaluated for both solid and annular circular plates, individually. | ||
| Key Words | ||
| circular plate; free vibration; functionally graded piezoelectric material; natural frequency | ||
| Address | ||
| M. Arefi: Department of Solid Mechanic, Faculty of Mechanical Engineering, University of Kashan, Kashan 87317-51167, Iran | ||