4.6 Article

Stability and vibration of shear deformable plates-first order and higher order analyses

期刊

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
卷 42, 期 3-4, 页码 1225-1251

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijsolstr.2004.06.067

关键词

extended Kantorovich method; plate buckling and vibration; first order plate theory; higher order plate theory; dynamic stiffness

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This work presents the highly accurate numerical calculation of the natural frequencies and buckling loads for thick elastic rectangular plates with various combinations of boundary conditions. The Reissener-Mindlin first order shear deformation plate theory and the higher order shear deformation plate theory of Reddy have been applied to the plate's analysis. The governing equations and the boundary conditions are derived using the dynamic version of the principle of minimum of the total energy. The solution is obtained by the extended Kantorovich method. This approach is combined with the exact element method for the vibration and stability analysis of compressed members, which provides for the derivation of the exact dynamic stiffness matrix including the effect of in-plane and inertia forces. The large number of numerical examples demonstrates the applicability and versatility of the present method. The results obtained by both shear deformation theories are compared with those obtained by the classical thin plate's theory and with published results. Many new results are given too. (C) 2004 Elsevier Ltd. All rights reserved.

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