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Nonlinear Stability Analysis of Thin FGM Annular Spherical Shells on Elastic Foundations under External Pressure and Thermal Loads

Thi Thuy Anh Vu and Huy Bich Dao and Dinh Duc Nguyen (2015) Nonlinear Stability Analysis of Thin FGM Annular Spherical Shells on Elastic Foundations under External Pressure and Thermal Loads. European Journal of Mechanics - A/Solids, 50 . pp. 28-38. ISSN 0997-7538

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Official URL: doi:10.1016/j.euromechsol.2014.10.004

Abstract

To increase the thermal resistance of various structural components in high-temperature environments, the present research deals with nonlinear stability analysis of thin annular spherical shells made of functionally graded materials (FGM) on elastic foundations under external pressure and temperature. Material properties are graded in the thickness direction according to a simple power law distribution in terms of the volume fractions of constituents. Classical thin shell theory in terms of the shell deflection and the stress function is used to determine the buckling loads and nonlinear response of the FGM annular spherical shells. Galerkin method is applied to obtain closed – form of load – deflection paths. An analysis is carried out to show the effects of material, geometrical properties, elastic foundations and combination of external pressure and temperature on the nonlinear stability of the annular spherical shells.

Item Type:Article
Subjects:Engineering Mechanics
ISI-indexed journals
Divisions:Faculty of Engineering Mechanics and Automation (FEMA)
ID Code:1212
Deposited By: Ms. Cam Le Tran Thi
Deposited On:24 Nov 2015 07:45
Last Modified:24 Nov 2015 07:46

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