Nonlocal strain gradient nonlinear primary resonance of micro/nano-beams made of GPL reinforced FG porous nanocomposite materials

The current study deals with the size dependency in the nonlinear primary resonance of harmonic soft excited micro/nano-beams made of functionally graded (FG) porous nanocomposite materials reinforced with graphene platelets (GPLs). The size-dependent mathematical formulations are developed based upon the nonlocal strain gradient theory of elasticity within the framework of a refined hyperbolic shear deformation beam theory. On the basis of the...