فهرست مقالات Sandwich structures

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  1 - The Frequency Response of Intelligent Composite Sandwich Plate Under Biaxial In-Plane Forces
  A. A Ghorbanpour-Arani Z Khoddami Maraghi A Ghorbanpour Arani
  10.22034/jsm.2020.1895607.1563
  This paper investigates the frequency response of a smart sandwich plate made of magnetic face sheets and reinforced core with nano-fibers. The effective elastic properties of composite core reinforced with carbon nanotube are estimated by the extended rule of Mixture. چکیده کامل

  This paper investigates the frequency response of a smart sandwich plate made of magnetic face sheets and reinforced core with nano-fibers. The effective elastic properties of composite core reinforced with carbon nanotube are estimated by the extended rule of Mixture. The orthotropic visco-Pasternak foundation is examined to study orthotropic angle, damping coefficient, normal, and shear modulus. The top and bottom face sheets of the sandwich are magnetic and their vibrations are controlled by a feedback control system and magneto-mechanical couplings. Also, the sandwich plate is subjected to the compression and extension in-plane forces in both x and y directions. Five coupled equations of motion are derived using Hamilton’s principle. These equations are solved by the differential quadrature method. The analysis performed by the third-order shear deformation theory (Reddy’s theory) shows useful details of the effective parameters such in-plane forces, modulus of elastic foundation, core-to-face sheet thickness ratio and controller effect of velocity feedback gain on the dimensionless frequency of the sandwich plate. The analysis of such structures can be discussed in the military, aerospace and civil industries. پرونده مقاله
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  2 - Simulation and Analysis of Sandwich Panels Free Vibration with Corrugated Core Based on Galerkin Method
  Gholamreza Banadcooki J. RezaeiPazhand
  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 چکیده کامل

  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. پرونده مقاله
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  3 - Analysis of Free Vibration Sandwich Panels with trapezoidal Corrugated Core Based on Galerkin Method
  Arman Gholamreza BanadCooki J.Rezaei Pazhand
  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 t چکیده کامل

  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. پرونده مقاله