I am having the same problem. 1.0.2 on Windows with no mods. I've noticed that it seems to actually happen to me whenever I transition from ground to orbit. Has happened on the Mun and Minmus as well. If I make it to orbit and I don't time warp at all it does not happen but if I do warp (which I only do once I reach a stable above 70 000 orbit of Kerbin for example) then the ship I am in bends. If I then return to the last quicksave before I timewarped, the bending continues. If I change ships, the bending happens on the new ship as well. If I go back to the space center or even exit to the main menu and return to any ship I have in orbit then they all bend and explode. It doesn't happen on in atmo flights. Exiting seems to resolve it but takes forever.