The author posted a question in Science, Technology, Languages
temperature expansion of welded railway rails. how do you deal with the change in length in winter/summer of such a long welded iron? and got a better answer
Response from
Response from 0[+++++]
cutting out torn tracks, repairing, collecting dropped steam locomotives.
cutting out torn tracks, repairing, collecting dropped steam locomotives.
Response from 0[+++++]
Long whips are laid at a certain temperature. Or, if the track is laid at a non-optimal temperature, they make an adjustment, move the stresses to one side or the other AND the size of those whips don't change year round. How can this be? Very simple. Only the internal stresses change in the rail, fully calculated and allowed for the material, without changing the length. This is a whole science. You can google it, if you're interested of course.
Long whips are laid at a certain temperature. Or, if the track is laid at a non-optimal temperature, they make an adjustment, move the stresses to one side or the other AND the size of those whips don't change year round. How can this be? Very simple. Only the internal stresses change in the rail, fully calculated and allowed for the material, without changing the length. This is a whole science. You can google it, if you're interested of course.