Analysis of Viscoelastic Functionally Graded Sandwich Plates with CNT Reinforced Composite Face Sheets on Viscoelastic Foundation

Publish Year: 1398
نوع سند: مقاله ژورنالی
زبان: English
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JR_JSMA-11-4_001

تاریخ نمایه سازی: 12 اسفند 1398

Abstract:

In this article, bending, buckling, and free vibration of viscoelastic sandwich plate with carbon nanotubes reinforced composite facesheets and an isotropic homogeneous core on viscoelastic foundation are presented using a new first order shear deformation theory. According to this theory, the number of unknown’s parameters and governing equations are reduced and also the using of shear correction factor is not necessary because the transverse shear stresses are directly computed from the transverse shear forces by using equilibrium equations. The governing equations obtained using Hamilton’s principle is solved for a rectangular viscoelastic sandwich plate. The effects of the main parameters on the vibration characteristics of the viscoelastic sandwich plates are also elucidated. The results show that the frequency significantly decreases with using foundation and increasing the viscoelastic structural damping coefficient as well as the damping coefficient of materials and foundation.

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Authors

A Ghorbanpour Arani

Institute of Nanoscience & Nanotechnology, University of Kashan, Kashan, Iran -----Department of Solid Mechanics ,Faculty of Mechanical Engineering, University of Kashan, Kashan , Iran

M Emdadi

Department of Solid Mechanics ,Faculty of Mechanical Engineering, University of Kashan, Kashan , Iran

H Ashrafi

Department of Solid Mechanics ,Faculty of Mechanical Engineering, University of Kashan, Kashan , Iran

M Mohammadimehr

Department of Solid Mechanics ,Faculty of Mechanical Engineering, University of Kashan, Kashan , Iran

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