TITLE

Study and Simulation of Thermal Buckling in a Thin Rectangular FGM Plate

AUTHOR(S)
Hamzehei, Mahdi; Raki, Mostapha
PUB. DATE
July 2011
SOURCE
International Review of Mechanical Engineering;Jul2011, Vol. 5 Issue 5, p918
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Equilibrium and stability equations of a rectangular plate made of functionally graded material (FGM) under thermal loads are derived, based on the higher order shear deformation plate theory. Assuming that the material properties vary as a power form of the thickness coordinate variable z and using the variational method, the system of fundamental partial differential equations is established. The derived equilibrium and stability equations for functionally graded plates (FGPs) are identical to the equations for laminated composite plates with 51 layers. A buckling analysis of a functionally graded plate under one type of thermal loads is carried out and results in closed form solutions, uniform temperature rise and gradient through the thickness are considered, and the buckling temperatures are derived. The critical buckling temperature relations are reduced to the respective relations for functionally graded plates with a linear composition of constituent materials and homogeneous plates The results are compared with the critical buckling temperatures obtained for functionally graded plates ANSYS software (FEM) given in the literature. The study concludes that higher order shear deformation theory accurately predicts the behavior of functionally graded plates.
ACCESSION #
76125811

 

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