"A.W.R." wrote in message
oups.com...
If one wanted to have a wall between vacuum and .15 Oxygen atm (or 1
atm air if you wish), what material will after a micro-meteor passes
through patch itself??? This is rather than the thick wall or shield
defense against micro-meteors.
1. With "1 thin metal wall", you get some stretching of metal then
puncture with no sealing. Or is this wrong?
It's wrong. At the speeds a micrometeorite would hit your wall, you don't
get "stretching then puncture", you get an effect that's more like an
explosion.
2. With "super-stretchable film" might one get long tube of stretched
film then puncture, so somehow the tube seals itself either by being
flatly pressed against remaining air by pressure or due to
self-adhesion?? I know its hard to get stretching due to super-speed
of meteor but possible at all??
I would think this woudn't be possible.
3. With film that doesn't stretch but is "multi-layer" film or metal
walls lying next to dozens of other layers, if one allowed layers to
shift might not the layers post-strike shift to seal and avoid complete
path to space??? Layers shouldn't stretch, which would block any
shifting. I know hard to imagine layers of material any of which could
be pressure wall, but maybe imagine metal tubes inside each other slide
on top of each other while heated so later contract and pressurize
(this idea is getting complicated...)
This idea is similar to the multi-layered protection already used on
spacecraft, but they typically use very high strength fabrics separated by
some amount of space. If you're layers are all togehter, the pieces made by
the object hitting the first layer don't have time to spread out. You want
them to spread out so that the next layer takes the impact over a larger
area. You then add as many layers as needed to get the protection desired.
If you read a bit about the subject, you'll find that your ideas aren't
original and you'll find out why some work and some don't.
Jeff
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