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Steel and Composite Structures Volume 25, Number 3, October30 2017 , pages 257-270 DOI: https://doi.org/10.12989/scs.2017.25.3.257 |
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An efficient and simple four variable refined plate theory for buckling analysis of functionally graded plates |
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Hichem Bellifa, Ahmed Bakora, Abdelouahed Tounsi,
Abdelmoumen Anis Bousahla and S.R. Mahmoud
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| Abstract | ||
| In this article, an efficient and simple refined theory is proposed for buckling analysis of functionally graded plates by using a new displacement field which includes undetermined integral variables. This theory contains only four unknowns, with is even less than the first shear deformation theory (FSDT). Governing equations are obtained from the principle of virtual works. The closed-form solutions of rectangular plates are determined. Comparison studies are carried out to check the validity of obtained results. The influences of loading conditions and variations of power of functionally graded material, modulus ratio, aspect ratio, and thickness ratio on the critical buckling load of functionally graded plates are examined and discussed. | ||
| Key Words | ||
| bending analysis; functionally graded plate; plate theory | ||
| Address | ||
| Hichem Bellifa, Ahmed Bakora and Abdelouahed Tounsi: Material and Hydrology Laboratory, University of Sidi Bel Abbes, Faculty of Technology, Civil Engineering Department, Algeria Abdelmoumen Anis Bousahla: Material and Hydrology Laboratory, University of Sidi Bel Abbes, Faculty of Technology, Civil Engineering Department, Algeria; Laboratoire des Structures et Matériaux Avancés dans le Génie Civil et Travaux Publics, Université de Sidi Bel Abbes, Faculté de Technologie, Département de génie civil, Algeria; Laboratoire de Modélisation et Simulation Multi-échelle, Département de Physique, Faculté des Sciences Exactes, Département de Physique, Université de Sidi Bel Abbés, Algeria S.R. Mahmoud: Department of Mathematics, Faculty of Science, King Abdulaziz University, Saudi Arabia | ||