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Wind and Structures
  Volume 22, Number 3, March 2016 , pages 291-305
DOI: https://doi.org/10.12989/was.2016.22.3.291
 


Analysis of buckling response of functionally graded sandwich plates using a refined shear deformation theory
Z. Abdelhak, L. Hadji, Z. Khelifa, T. Hassaine Daouadji and E.A. Adda Bedia

 
Abstract
    In this paper, a refined shear deformation plate theory which eliminates the use of a shear correction factor was presented for FG sandwich plates composed of FG face sheets and an isotropic homogeneous core. The theory accounts for parabolic distribution of the transverse shear strains and satisfies the zero traction boundary conditions on the surfaces of the plate. The mechanical properties of the plate are assumed to vary continuously in the thickness direction by a simple power-law distribution in terms of the volume fractions of the constituents. Based on the present refined shear deformation plate theory, the governing equations of equilibrium are derived from the principle of virtual displacements. Numerical illustrations concern buckling behavior of FG sandwiches plates with Metal–Ceramic composition. Parametric studies are performed for varying ceramic volume fraction, volume fraction profiles, Boundary condition, and length to thickness ratios. The accuracy of the present solutions is verified by comparing the obtained results with the existing solutions.
 
Key Words
    mechanical properties; functionally graded sandwich plate; buckling; shear deformation; volume fraction
 
Address
Z. Abdelhak:Department of Civil Engineering, Material and Hydrology Laboratory, University of Sidi Bel Abbes,
Faculty of Technology, Algérie;
Centre Universitaire Ahmed Zabana, 48000 Relizane, Algérie
L. Hadji, Z. Khelifa and T. Hassaine Daouadji:Department of Civil Engineering, Material and Hydrology Laboratory, University of Sidi Bel Abbes, Faculty of Technology, Algérie;
Université Ibn Khaldoun, BP 78 Zaaroura, 14000 Tiaret, Algérie
E.A. Adda Bedia:Department of Civil Engineering, Material and Hydrology Laboratory, University of Sidi Bel Abbes,
Faculty of Technology, Algérie


 

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