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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
Free Vibration Analysis of Size-Dependent Multi-Layered Graphene Sheets Based on Strain Gradient Elasticity Theory
Type
JournalPaper
Keywords
Navier method ESDT Multi-layered graphene sheets Strain Gradient Theory
Year
2022
Journal Mechanics of Advanced Composite Structures
DOI
Researchers Korosh Khorshidi ، mehdi karimi ، Ahmad Ali Alinezhad

Abstract

This study investigates the size-dependent free vibration analysis of multi-layered graphene sheets based on exponential shear deformation theory (ESDT), which considers the effects of rotary inertia and transverse shear deformations. In order to capture the effects of length scale parameter on the vibrational behavior of the structure, modified strain gradient elasticity theory is utilized. An elastic multiple-plate model is assumed in which the nested plates are coupled with each other through the van der Waals interlayer forces. The governing equations of motion are derived by implementing Hamilton’s principle and then are solved with the Navier approach. To verify the present model, results in specific cases are compared with the available papers in the literature and excellent agreement is seen. Finally, the effects of various parameters such as aspect ratio, thickness ratio, Winkler modulus, shear modulus, and size effects on the natural frequencies of a multi-layered graphene sheet are presented and discussed in detail.