Abstract: Based on the classical large deflection theory of shallow shells, the governing equations for the composite laminated cylindrical panel subjected to lateral pressure are established. By the use of the orthogonal function approaches under the condition of clamped edges with movable support, the governing equations can be numerically solved for their dynamic response at any instant. Attention is focused on the dynamic buckling behavior of the symmetric orthotropic laminated panel under uniform step pressure by utilizing B R criteria associated with the dynamic response history of the panel. The influence of the ply sequence of the lamina and the structural parameters on the dynamic "snap" of the panel is discussed based on the numerical results.

Key words: composite laminated cylindrical panel, nonlinear, snapth rough instability clampededge with movable support