3 ms·

I believe the stresses of the hull going through changing pressures is relevant.

• throw0101a 3y ago
  > I believe the stresses of the hull going through changing pressures is relevant. It certainly does for aircraft, and I doubt the material science would be much different for subs (with the added challenge(s) that (salt) water often brings): * https://www.smithsonianmag.com/air-space-magazine/what-determines-an-airplanes-lifespan-29533465/ https://www.smithsonianmag.com/air-space-magazine/what-deter... * https://simpleflying.com/pressurization-cycles-aircraft-lifespan/ https://simpleflying.com/pressurization-cycles-aircraft-life...
  • erik_seaberg 3y ago
    Worse, going from 1 atm down to 400 atm of pressure is a much larger difference than going up to 0.2 atm.
  • jsjohnst 3y ago
    Pressure at 330ft (aka 100m, way way shallower than Titanic depths) is 10 atmospheres higher than what it is at the surface. Even at 50k feet (higher than most planes operate) air pressure is still > 0.1 atmospheres. Titanic depths are around 380 atmospheres pressure. So equivalent to the difference of about 133,700 feet and sea level.
• lamontcg 3y ago
  Definitely does for compressed gas cylinders.