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Korosh Khorshidi

Korosh Khorshidi

Academic rank: Associate Professor
ORCID: https://orcid.org/0000-0002-7321-972X
Education: PhD.
ScopusId: 23970920600
Faculty: Engineering
Address: Arak University
Phone: 086-32625720

Research

Title
A comprehensive nonlocal surface-piezoelectricity model for thermal and vibration analyses of piezoelectric nanoplates
Type
JournalPaper
Keywords
Piezoelectric nanoplates Surface effect Electro/thermal vibration analysis
Year
2021
Journal Composite Structures
DOI
Researchers Korosh Khorshidi ، mehdi bahrami ، Mehdi Eshaghi ، Mohsen Ghasemi

Abstract

The present study employs the modified shear deformation plate theories to investigate the effects of surface parameters on the electro-thermal vibration characteristics of the piezoelectric nanoplates. The nonlocal surface piezoelectricity theory based on Gurtin-Murdoch surface elasticity and Eringen’s nonlocal theory are incorporated to take the small-scale effects into account. The governing equations of motion of the structure are derived and solved using the Hamilton’s principle and Galerkin method. Validity of the proposed model is demonstrated by comparing the results with those available in the literature. The verified model is employed to investigate the effects of different parameters such as surface residual stress, surface elastic constants, surface piezoelectricity, nonlocal parameter, aspect ratio, thickness ratio, temperature, and applied voltage on the dynamic characteristics of the structure. The results report significant contribution of the surface parameters in vibration characteristics of the piezoelectric nanoplates.