Submarine Model Pressure Hull Collapse at Yateley, HANTS, UK

In general, most submarine pressure hulls consist of a combination of circular cylinders, cones and domes. In this study we will concern ourselves with the imploding of circular cylinders under external hydrostatic pressure. Such vessels usually collapse at a fraction of the pressure to cause the same vessels to explode under internal pressure. One of the cylinders reported in the present video, collapsed at an external pressure of about 1000 bars; this is equivalent of a submarine diving to a depth of about 10 km (or 6.2 miles); the deepest part of our oceans being found in the Mariana's Trench, which is about 11.52 km (7.16 miles) deep.