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Smart Structures and Systems Volume 28, Number 3, September 2021 , pages 305-318 DOI: https://doi.org/10.12989/sss.2021.28.3.305 |
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Effect of applied electric potential and micro length scale parameters on the electroelastic analysis of three-layered shear deformable micro-shell |
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Yang Yang, Keyong Shen, Gholamreza Ghasemian Talkhunche and Mohammad Arefi
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| Abstract | ||
| This paper uses higher-order shear deformation theory and modified couple stress theory (MCST) to the electroelastic results of FG micro-shell integrated with piezoelectric thin sheets subjected to electrical and mechanical loads rested on Pasternak's foundation. Third-order shear deformation theory (TSDT) is used for the description of the displacement field. Effect of micro-size is applied using MCST with the introduction of one micro-length scale parameter. Governing equations are derived based on the principle of virtual work. Micro-shell is composed of a FG micro core and two piezoelectric hollow shells. The numerical results are obtained for the simply-supported boundary conditions. Longitudinal and radial displacements are presented in terms of important parameters such as applied electric potentials, micro length scale parameter, dimensionless geometric parameters and two parameters of Pasternak's foundation. | ||
| Key Words | ||
| applied electric potential; axial and radial displacements; micro-length scale parameter; micro-shell; thirdorder shear deformation theory | ||
| Address | ||
| (1) Yang Yang: School of Electronics and Information, Nanchang Institute of Technology, Nanchang 330044, Jiangxi, China; (2) Keyong Shen: School of Computer Information Engineering, Nanchang Institute of Technology, Nanchang 330044, Jiangxi, China; (3) Gholamreza Ghasemian Talkhunche, Mohammad Arefi: Department of Solid Mechanics, University of Kashan, Kashan 87317-51167, Iran. | ||