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Steel and Composite Structures Volume 33, Number 4, November25 2019 , pages 551-568 DOI: https://doi.org/10.12989/scs.2019.33.4.551 |
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On the stability of isotropic and composite thick plates |
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S.R. Mahmoud and Abdelouahed Tounsi
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| Abstract | ||
| This proposed project presents the bi-axial and uni-axial stability behavior of laminated composite plates based on an original three variable "refined" plate theory. The important "novelty" of this theory is that besides the inclusion of a cubic distribution of transverse shear deformations across the thickness of the structure, it treats only three variables such as conventional plate theory (CPT) instead five as in the well-known theory of "first shear deformation" (FSDT) and theory of "higher order shear deformation" (HSDT). A "shear correction coefficient" is therefore not employed in the current formulation. The computed results are compared with those of the CPT, FSDT and exact 3D elasticity theory. Good agreement is demonstrated and proved for the present results with those of "HSDT" and elasticity theory. | ||
| Key Words | ||
| stability analysis; isotropic; laminated composite plate | ||
| Address | ||
| (1) S.R. Mahmoud: GRC Department, Jeddah Community College, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (2) Abdelouahed Tounsi: Civil and Environmental Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia; (3) Abdelouahed Tounsi: Material and Hydrology Laboratory, University of Sidi Bel Abbes, Faculty of Technology, Civil Engineering Department, Algeria. | ||