what would a hull breach in a space colony look like?

You might want to talk to some astrophysicists who work in this area. If theywould talk to you that is; although they might if you tell them what thierknowledge is going to be used for.My educated guess -- and it's only a guess -- is that at high speed it wouldinvolve pulverisation if not outright vaporisation of the hull at the impact spot.With only slight bending in at entry and bending out at exit.