An isogeometric approach for dynamic response of laminated FG-CNT reinforced composite plates integrated with piezoelectric layers

Abstract

This study proposes an extension of the isogeometric approach for the dynamic response of laminated carbon nanotube reinforced composite (CNTRC) plates integrated with piezoelectric layers. The mechanical displacement field is approximated according to the higher-order shear deformation theory (HSDT) using the formulation based on Non-Uniform Rational B-Spline (NURBS) basis functions. The single-walled carbon nanotubes (SWCNTs) are assumed to be uniformly distributed (UD) or functionally graded (FG) distributed along the thickness direction. The material properties of carbon nanotube-reinforced composite plates are estimated according to the extended rule of mixture, while the electric potential is assumed to be a linear function through the thickness of each piezoelectric sub-layer. A velocity feedback control algorithm is used for the active control of the plate through a closed-loop control with piezoelectric sensors and actuators. The reliability and efficiency of the proposed technique are verified by comparing its numerical results with available references in literature.