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Optimal weight design of laminated composite panels with different stiffeners under buckling loads

Badiey, M ; Sharif University of Technology

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  1. Type of Document: Article
  2. Abstract:
  3. In the present paper, buckling behavior of a rectangular Functionally Graded Plate (FGP) under combined shear and direct loading is considered. The total potential energy is derived for a FGP in stability condition. Derivation of totalpotential function is based on the classical plate theory. Also, in-plane flexibility is considered in shear buckling analysis. It is assumed that the non-homogeneous mechanical properties of the plate graded through thickness and are described with a power function of the thickness variable. The critical buckling shear loads in conjunction with in-plane direct loads have been obtained for different ratios and power law indices of functionally graded materials (FGMs). The results are reduced and compared with the results of homogeneous plate under similar loading conditions
  4. Keywords:
  5. FEM ; Classical pate theory ; FGP ; Functionally graded material (FGMs) ; Functionally graded plates ; Optimal weight designs ; Potential function ; Shear buckling ; Total potential energy ; Aerodynamics ; Finite element method ; Functionally graded materials ; Laminated composites ; Loading ; Mechanical properties ; Buckling
  6. Source: 7th Congress of the International Council of the Aeronautical Sciences 2010, ICAS 2010 ; Volume 3 , 2010 , Pages 2039-2049 ; 9781617820496 (ISBN)
  7. URL: http://www.icas.org/ICAS_ARCHIVE/ICAS2010/PAPERS/740.PDF