Buckling and vibration of ring-stiffened cones under uniform external pressure

Theoretical and experimental results are presented for the buckling and vibration of three ring-stiffened thin-walled cones constructed from mild steel. For vibration, the study consisted of exciting the cones in air and while partially and fully submerged in water. For the buckling study, the cones were subjected to a gradually applied uniform external pressure until instability occurred.