A study on anisotropic behavior of functionally graded plates by higher order refined theory

This article introduces an approximate two-dimensional (2D) approach to analyze the static behavior of elastic plates composed of functionally graded materials (FGM) exhibiting anisotropic characteristics. The methodology employed involves the refined Higher Order Shear and Normal Deformation Theory (HOSNT12), which incorporates a comprehensive set of 12 degrees of freedom in displacement field. In this analytical framework, it is assumed that the mechanical properties of the plate vary exponentially throughout its thickness. Five distinct exponential variations are applied to modify the stiffness matrix of the plate. The resulting findings are compared to the exact solution, demonstrating a satisfactory level of precision.