Abstract—In this paper, buckling of elastic, circular plates
made of functionally graded material subjected to thermal
loading have been investigated. Boundary condition of the plate
as immovable clamped edge is considered. The material
properties of the FG plates except poisson’s ratios are assumed
to vary continuously throughout the thickness direction
according to the volume fraction of constituents defined by
power-law, sigmoid, and exponential function. The Nonlinear
equilibrium equations are derived based on the classical plate
theory using variational formulations. Linear stability
equations are used to obtain the critical buckling of solid FG
circular plate under thermal load as uniform temperature rise,
linear and nonlinear temperature distribution through the
thickness. The effects of P-, S-, E-FGM on buckling of plate are
compared. The results are validated with the known data in the
literature.
Index Terms—Classical plate theory, thermal buckling, functionally graded material.
A. R. Khorshidvand is with the engineering Faculty, Department of Mechanical Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran (e-mail: AR_Khorshidvand@azad.ac.ir).
M. R. Eslami is with the Mechanical Engineering Department, Amirkabir University of Technology, Tehran 15914, Iran (e-mail: eslami@aut.ac.ir).
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Cite:A. R. Khorshidv and M. R. Eslami, "A Comparison between Thermal Buckling Solutions of Power-Law, Sigmoid, Exponential FGM Circular Plates," International Journal of Engineering and Technology vol. 5, no. 2, pp. 191-194, 2013.
