“…Modifications were introduced to the formulation of this mixed finite element to incorporate the gradual properties of functionally graded materials. The RMQ-7 (Reissner Modified Quadrilateral), which has 7 nodes with 2 degrees of freedom per node, was developed by (Bouzerd, 1992), (Bouziane et al, 2009) configured the RMQ-7 in the natural plane (ξ, η), as depicted in Figure 3.…”