@fengjianchen

For comparison, the research submersible Alvin is able to resist up to 6 kilometres of depth with its 75mm thick, 2 metre diameter, titanium pressure sphere. There’s probably a significant safety margin on that, but if we take it as a standard, then we can expect that a 150mm (6″) thick titanium sphere of the same dimensions would resist the pressure at 11 km depth. Therefore, [edit: given that metals tend to have similar tensile and compressive strengths] one could reasonably expect the sphere to contain the same pressure. Or one could use the same thickness of titanium as Alvin and reduce the diameter by half to provide the same structural strength.

1 reply

0 recast

2 reactions