Buckling of A Large Ring Stiffened Prolate Dome Under External Hydrostatic Pressure

The paper reports on the buckling of a ring-stiffened hemi-ellipsoidal prolate dome under external hydrostatic pressure. The study was partly theoretical and partly experimental, where in the case of the latter, the finite element method was used. Comparison between experiment and theory was good. The effect of ring stiffening the dome was to increase its buckling resistance by a factor of 2.05.