Bending responses of graphene nanoplatelets reinforced sandwich cylindrical micro panel with piezoelectric layers

Bending responses of a nanocomposite-reinforced cylindrical panel are studied in this article. A cylindrical shell panel is assumed in micro scale and sandwiched by piezoelectric layers. In this article, a micro-size dependent theory named as the modified couple stress theory (MCST) is analytically employed and the kinematic relations are extended through employing shear deformable model in order to investigate the electroelastic bending responses of a three-layered micro-shell bonded between smart layers subjected to an applied voltage, external and internal pressures. The micro-shell is assumed rested on a two parametrically elastic foundation. In order to develop constitutive relations, the mixture's rule as well as Halpin-Tsai model are utilized to compute governing equations. Electroelastostatic responses are analytically obtained through trigonometric functions. A large extended parametric analysis is presented to explore deflection of the micro-shell with a change in applied voltage, thickness of the piezoelectric layer to radius, length to radius ratio, different characteristics of nanoplatelet reinforcement for the both external and internal pressure. The proposed composite electromechanical structure may be used in the smart structures and systems. A controllable system can be suggested through the usage of graphene nanoplatelets because of flexibility and affecting parameters.