NON-LINEAR TRANSIENT ANALYSIS OF MODERATELY THICK LAMINATED COMPOSITE PLATES

The non-linear transient analysis of the shear deformable laminated composite plates, subjected to step, ramp and sinusoidal loading is presented. The clamped, simply supported, free and their combinations (non-Levy type) of boundary conditions are considered. The formulation is based on the Mindlin first order shear deformation theory and von-Karman non-linearity. The methodology of the solution is based on the Chebyshev series technique. Houbolt time marching scheme and quadratic extrapolation technique are used for the temporal discretization and linearization respectively. The effects of magnitude and duration of loading, rotary inertia, in-plane, inertia, b/a, a/h, lamination scheme and boundary conditions on the central displacement response are studied. Typical results are presented in dimensionless graphical forms for different parameters and loading conditions.