rapid decompression, like SUPER rapid decompression. those massive canisters hold gases (at times) so they have to be pressurized to prevent oxygen bubbles in the system. remove all the presure and BANG... enough PPI to destroy it.
This is actually a reversed version of them blowing the tank full of air. that's how they get it to be that shape to begin with. It's like a big metal balloon.
Adam.. if that was how they "expanded a tank" every weld would be cracked and the tank would rupture under pressure, Not to mention if this WAS how they created a tank it would not be while mounted to wheels as there is risk of damage.
Yours Trully
Some one who used to work on pressure vessels.
Lawrence J. Leamy http://www.downfallguild.org/sites/www.downfallguild.org/files/images/1241311768176.gif
This madness has to stop now. How could anyone have actually thought I was being serious?
Probably because you came off as being serious. It's not uncommon for a person to say something that's not right, be told that it's not right, and try to pass it off as "I was just joking", especially on the internet. Sorry man, but that seems to be what's happening here, too.