Journal of Computational Applied Mechanics

Design and simulation Sandwich Composite Fairing Shells Using FEM Analyzing

Document Type : Research Paper

Authors

1 Department of Aerospace engineering, Malek Ashtar University of Technology, Tehran, Iran

2 Polymer Engineering Department, Amirkabir University of Technology, Tehran, Iran

3 Composite Materials Department, Materials & Manufacturing Technology Faculty, Malek Ashtar University of Technology, Tehran, Iran

4 Department of Chemical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran

Abstract

   In order to investigate and improve the destructive effects of maneuvers that the flying body has during a flight in space, it is necessary to know the forces acting on the flying body. In this paper, an analysis of the composite sandwich structure of a launch vehicle fairing is considered. This study explores carbon-fiber-reinforced skins with different cores used to deploy satellites and can be used as a space habitat. In order to calculate the effective forces on sandwich skins, finite element method (FEM) was used to determine three-dimensional stress and strain. Three types of structural models with honeycomb and solid core under dynamic loads were compared and evaluated. Models were compared in three category of stress distribution, strain and weight. The honeycomb core pattern helps reduce the structure's weight up to half of the structure compared to a solid core. The effect of mesh size sensitivity applied on simulations. The results showed that the amount of stress and strain were the same in all models and only differed in dispersion. However, the composite sandwich structure with aluminum core showed more strength against the applied forces.

Keywords

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Journal of Computational Applied Mechanics
Volume 53, Issue 1
March 2022
Pages 55-65
  • Receive Date: 28 November 2021
  • Revise Date: 07 February 2022
  • Accept Date: 25 February 2022