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

This paper aims to evaluate sandwich panels' free vibration with corrugated core by Element-free Galerkin methods and based on first order shear deformation theory (FSDT) investigated. The sandwich panels' free vibration 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 first order shear deformation theory. The present research applies Galerkin numerical elementless 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.

Keywords:

Free vibrations , Sandwich structures , Corrugated core , Element-free Galerkin methods