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Volume 1, Number 1, June 2019 , pages 1-19 DOI: https://doi.org/10.12989/cme.2019.1.1.001 |
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On buckling behavior of thick advanced composite sandwich plates |
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Abdelouahed Tounsi, Hassen Ait Atmane, Mokhtar Khiloun,
Mohamed Sekkal, Ouahiba Taleb and Abdelmoumen Anis Bousahla
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| Abstract | ||
| In this work, a novel higher-order shear deformation theory (HSDT) is presented for buckling analysis of functionally graded plates. The present theory accounts for both shear deformation and thickness stretching effects by a parabolic variation of all displacements across the thickness, and satisfies the stress-free boundary conditions on the upper and lower surfaces of the plate without requiring any shear correction factor. The number of independent unknowns of this theory is four, as against five in other shear deformation theories. Unlike the conventional HSDT, the present one has a new displacement field which introduces undetermined integral variables. The material properties of the faces of sandwich plate are assumed to vary according to a power law distribution in terms of the volume fractions of the constituents. The core layer is made of an isotropic ceramic material. The governing equations are obtained by the principle of virtual work. Analytical solutions for the buckling analyses are solved for simply supported sandwich plate. Numerical examples are given to show the effects of varying gradients, thickness stretching, and thickness to length ratios on the critical buckling loads of functionally graded sandwich plate. | ||
| Key Words | ||
| functionally graded plates; refined plate theory; buckling analysis; stretching effects | ||
| Address | ||
| Abdelouahed Tounsi: Department of Civil and Environmental Engineering, King Fahd University of Petroleum & Minerals, 31261 Dhahran, Eastern Province, Saudi Arabia Hassen Ait Atmane, Mokhtar Khiloun, Abdelouahed Tounsi, Mohamed Sekkal: Material and Hydrology Laboratory, University of Sidi Bel Abbes, Faculty of Technology, Civil Engineering Department, Algeria Hassen Ait Atmane: Departement de genie civil, Faculte de genie civil et d'architecture, Univesite Hassiba Benbouali de Chlef, Algerie Mokhtar Khiloun: Departement de Genie Civil, Faculte des Sciences Appliquees, Universite Ibn Khaldoun, Tiaret, Algerie. Ouahiba Taleb: University Mustapha Stambouli of Mascara, Department of Civil Engineering, Mascara, Algeria Ouahiba Taleb: Laboratoire des Sciences et Techniques de l'Eau, University Mustapha Stambouli of Mascara, Mascara, Algeria Abdelmoumen Anis Bousahla: Laboratoire de Modelisation et Simulation Multi-echelle, Departement de Physique, Faculte des Sciences Exactes, Departement de Physique, Universite de Sidi Bel Abbes, Algeria. Abdelmoumen Anis Bousahla: Centre Universitaire Ahmed Zabana de Relizane, Algerie | ||
