Bending Behavior of Graphene Reinforced Composite Porous Circular and Annular Plates using Three Dimensional Elasticity

Due to important role of composite materials in broad spectrum of applications, this paper focused on bending of a functionally graded graphene platelet reinforced composite porous circular/annular plates with various boundary conditions by employing state-space differential quadrature method (DQM). Equations of motion are established within the framework of theory of elasticity and are formulated along the thickness direction in the form of state-space. Applying DQM along the radial direction provides a semi-analytical solution to bending of the plate. The results of applying present approach are validated by comparing them with those reported in the literature. A thorough parametric investigation is conducted on the effects of different GPLs distributions integrated with various distribution patterns of internal porosity, thickness to radius ratio, graphene platelets (GPLs) weight fraction, porosity coefficient and edge boundary conditions on the bending behavior of FG-GPLRC circular/annular plates. The results reveal a very useful practical designing hint that locating more GPLs in the vicinity of the upper and bottom surfaces of the circular/annular plates with lower outer radius to thickness.