alt Hacker NewsI had wondered the whole time why they didn’t just pierce it with an AM rifle. Would that not have been better than a random partial failure via a crack?
Genuinely open question. I don’t know anything about stuff.
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Not a direct answer, but there is a standard code for what actions emergency services should take, and the code[1] for this stuff is 3YE, which means "Use foam or dry agent, substance reacts violently/is explosive, BA [breathing apparatus] use is essential, evacuate vicinity, contain spill." So there must be some reason not to let the stuff out.
[1] This is the hazchem code. I think the US uses a different system. A list is here: https://www.ricardo.com/media/radn55jg/dangerous-goods-emerg...
I guess that begs the next point though - the high pressure system inside would want to violently vent out to the low pressure system outside through the relatively tiny hole.
Delta P... when it's got you... it's got you.
If you shoot and pierce a vessel that is pressurised, especially if it’s near its pressure limit anyway, it will explode. Even if it’s just filled with an inert gas.
Actually even just making a hole by any means will significantly increase the chances of an explosion. This because the smallest crack can start a chain reaction where the material at the leading edge of the crack is bearing too much stress and the bonds break which then passes the stress on to the material straight after that. This all happens very quickly and can even accelerate as the hole grows bigger and gas starts moving.
It’s very lucky that the crack that formed didn’t propagate like that. It could be for many reasons though, like the crack front could have run into thicker material or a weld line or something like that and if luckily stopped the crack.