Nonlinear forced vibration of in-plane bi-directional functionally graded materials rectangular plate with global and localized geometrical imperfections

This research aims to investigate the nonlinear vibration of the in-plane bi-directional functionally graded (BDFG) plate with global and localized geometrical imperfection subjected to a transverse harmonic excitation. The material properties of plate are varying along two in-plane directions. The global and localized geometrical imperfections are simulated in the form of products of trigonometric and hyperbolic functions. Based on the von...