Analysis of Free Vibration Sandwich Panels with trapezoidal Corrugated Core Based on Galerkin Method

Subject Areas : Analytical and Numerical Methods in Mechanical Design

Arman Gholamreza BanadCooki ¹ , J.Rezaei Pazhand ²

1 - Faculty of Industrial and Mechanical Engineering, Islamic Azad University, Qazvin Branch, Qazvin, Iran
2 - Faculty of Engineering, Ferdowsi University, Mashhad, Iran

Received: 2023-04-09 Accepted : 2023-04-09 Published : 2022-12-01

Keywords: Free vibrations, Sandwich structures, Element-free Galerkin methods, Trapezoidal corrugated core,

Abstract :

The purpose of this paper is to evaluate the free vibration of sandwich panels with corrugated core using the element-free Galerkin method and based on the first-order shear deformation theory (FSDT).The sandwich panels' free vibrations with corrugated core consist of two sheets above and below the panels, and a corrugated core in middle of these panels. The core equals to orthotropic sheet and the two panels equal to isotropic sheet. Dynamic equations of the members are obtained through FSDT. The present research applies Galerkin numerical element less method to solve equations of the problems. This method uses the functions of minimum moving squares. The model is simulated in cosmos software; the results are compared with the results of present papers, and show the accuracy of the method applied in the present paper.

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