Journal
MATERIALS & DESIGN
Volume 31, Issue 1, Pages 2-13Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2009.07.025
Keywords
Free vibration; Curved panel; Functionally graded material; Differential quadrature; Elastic foundation; Thermal environment
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In this study, free vibration analysis of initially stressed thick simply supported functionally graded curved panel resting on two-parameter elastic foundation (Pasternak model) subjected in thermal environment is studied using the three-dimensional elasticity formulation. The material properties are temperature dependent and the temperature is assumed to have uniform and non-uniform distributions through the thickness direction of the curved panel. In order to discretize the governing equations, the differential quadrature method in the thickness direction and the trigonometric functions in longitudinal and tangential directions in conjunction of the three-dimensional form of the Hamilton's principle are used. The convergence of the method is demonstrated and to validate the results, comparisons are made with the available solutions for both isotropic and functionally graded material (FGM) curved panels. By examining the results of thick FGM curved panels for various geometrical parameters and temperature distribution models with the inclusion of supporting elastic foundation, the influence of these parameters and in particular, those due to functionally graded material (FGM) parameters are studied. (C) 2009 Elsevier Ltd. All rights reserved.
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