Abstarct: Abstract With the development of advanced materials due to their extraordinary advantages, it is necessary to study and investigate the response of FG-GPL porous circular plates under impact load. For modeling the FG-GPL porous circular plates examined in this thesis, three common types of porosity along the thickness, and, also for all three types of porosity, five types of graphene distribution have been considered. The impactor is spherical and rigid, and the modified Hertz contact law is used to model the impact. The governing equations are baxsed on the first-order shear deformation theory and in the elastic range, and the finite element method is used to solve the equations. Newmark's method is used to solve the time equation of motion, and Picard's direct iteration nonlinear algorithms are used to solve the nonlinear equations resulting from the contact force. In this thesis, the effect of porosity coefficient, type of porosity distribution, different impactor masses, different impactor velocity, different graphene distributions, and the impact of graphene weight percentage on contact force distribution and plate displacements under different types of boundary conditions and geometric have investigated. Also, Indentation, eccentric impact, and, stress analysis were studied. In the results of this research was observed that an increase of only 0.01 percent by weight of GPLs increases the contact force by about 95.8 percent, and the type of porosity and the type of graphene distribution pattern have the most significant effect on the behavior of the circular plate. The highest percentage difference between the maximum and minimum contact force of the circular plate is affected by the contact force with more than 122% due to the change in the type of porosity and related to type 2 and 3 porosity and also, the highest percentage of the difference between the maximum and minimum contact force is about 61%. It is caused by changes in different graphene patterns and respectively by the distribution of graphene nanoparticles of GPL-V and GPL-O type. From the results was found that the velocity and mass of the impactor have a direct and significant effect on the contact force of the circular plate and, other factors such as porosity coefficients, the thickness of the circular plate and, different boundary conditions have relatively less effect on the behavior of the FG-GPL circular plate in response to the impact.