This study investigates the natural frequency behavior of a hybrid composite annular plate, combining graphene platelet (GPL)-reinforced polymer layers with carbon fibers (CFs) for enhanced strength, stiffness, and damping. The nanocomposite matrix is characterized using the Eshelby–Mori–Tanaka model and integrated with CFs to form a high-performance hybrid laminate. Governing equations, derived via first-order shear deformation theory, are solved using a Hamiltonian-based finite element method. Parametric analyses reveal that GPL addition in...
