Free Vibration of Bimodulus Laminated Cross-Ply Conical Panels

The problem is formulated employing first order shear deformation theory. The governing equations, obtained using Lagrange’s equation of motion, are solved by finite element method. A detailed parametric study is carried out to study the influences of thickness ratio, aspect ratio, semicone angle, and number of layers on the free vibration natural frequencies and neutral surface location of bimodulus cross-ply composite laminated conical panels.