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Wilfried, While we have been talking about your submarine hull and Troll, these structures depend on the
great compressive strength of concrete. Concrete doesn’t due well
under tension (this is why concrete panels are pre-stressed and glass fibers
are added to improve concrete’s ability to resist tension loads).
How would you propose using concrete to accommodate Carsten’s lock-out
chamber that is also used for decompression (which would put the concrete deco pressure
vessel under tensional load when the sub returns to the surface while still
maintaining divers at some greater depth of pressure)? R/Jay Respectfully, Jay K. Jeffries Andros Is., It is the mark of an educated mind to be able to entertain a thought
without accepting it. - Aristotle -----Original Message----- stress levels in a concrete submarine yacht hull - troll Oystein, this calculation takes my sub to a working depth of 606m -
anyhow i would not trust the viewports for such a depth... but this shows that
you can get manageable stresslevels similar to TROLL in a concrete pressure
hull that goes to 606m with a yacht configuration - still not using spheres as
pressure hull as in deep diving configuration. Wilfried |