Free vibration of composite circular cylindrical shells with random material properties. Part II: Applications

In the second part of this study the approach developed in Part I has been used to analyse free vibration of three composite circular cylindrical shells with random scatter in the material properties. The cases considered are ¯ specially orthotropic symmetric shells in axisymmetric and asymmetric oscillations, and antisymmetric cross ply laminated shell in axisymmetric oscillations. With known statistics of the material properties the mean and the variance of the natural frequencies have been obtained. Numerical results have been presented for graphite¯epoxy composite shells.