Analytical and Experimental Studies of Nonlinear Transient Responses of Stiffened Cylindrical Panels Richard
A solution procedure which employs the spatial finite-element method together with the temporal finitedifference method is presented for predicting transient elastic-plastic large-deflection responses of structures. The assumed-displacement finite-element formulation is described in detail for quadrilateral cylindrical panel elements stiffened orthogonally by longitudinal and/or circumferential stiffeners. The sheet high-explosive loading technique was employed to conduct impulsive loading and structural response tests of circumferentially stiffened cylindrical panels of 6061-T6 aluminum alloy, with all four edges clamped. Large transient and permanent structural deformations were produced. Excellent theoretical/experimental correlation for transient strains and permanent deformation is observed.