The dual mesh finite domain method (DMFDM) introduced by Reddy employs one mesh for the approximationof the primary variables (primal mesh) and another mesh for the satisfaction of the governing equations (dualmesh). The present study deals with the extension and application of the DMFDM to functionally gradedcircular plates under axisymmetric conditions. The formulation makes use of the traditional finite elementinterpolation of the primary variables with a primal mesh and a dual mesh to satisfy the integral form of thegoverning differential equations, the basic premise of the finite volume method. The method is used toanalyze axisymmetric bending of through-thickness functionally graded circular plates using the classical platetheory (CPT) and first-order shear deformation plate theory (FST). The displacement model of the FST and themixed model of the CPT using the DMFDM are developed along with the displacement and mixed finiteelement models. Numerical results are presented to illustrate the methodology and a comparison of thegeneralized displacements and bending moments computed with those of the corresponding finite elementmodels. The influence of the extensional-bending coupling stiffness (due to the through-thickness grading ofthe material) on the deflections is also brought out.
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