Free vibration of functionally graded carbon nanotube reinforced composite cylindrical shell panel with a cutout

Abstract

In the present investigation, the linear free vibration of carbon nanotube (CNT) reinforced cylindrical shell panel with a cutout is studied using the finite element method based on a higher-order shear deformation theory. A higherorder theory is used to properly account for transverse shear deformation. An eight noded degenerated isoparametric shell element with nine degrees of freedom at each node is considered. Results are presented for the variation of the fundamental natural frequency of functionally graded CNT reinforced cylindrical shell panel with cutout size. A few typical mode shapes are also presented.