Abstract
This paper deals with the problem of dynamic stability of composite laminated cylindrical shells under impact torsion is described. First of all, the motion of cylindrical shells under impact torsion is defined as axially symmetric motion. Following this definition, certain perturbations are superimposed on this motion and their effect on the behavior of the shell is investigated. The solutions for the prebuckling motion and the perturbed motion are obtained using the Galerkin's method. Stable regions are determined by utilizing Mathieu's equation. The inevitability of dynamically unstable behavior is proved analytically and the effects of various factors are clarified.
