Spherical Hankel-Based Free Vibration Analysis of Cross-ply Laminated Plates Using Refined Finite Element Theories

In this paper, spherical Hankel basis functions and Carrera unified formulation (CUF) are utilized for the free vibration analysis of laminated composite plates. The spherical Hankel shape functions are derived from the corresponding radial basis function. These functions have excellent ability to satisfy the first and second kind of Bessel function as well as polynomial function fields which leads to more accurate results. Also, CUF presents an...