Yes, it has to be in tension. In our experience, the current rail temperature/ambient temperature needs to be something like at least 20F lower than the neutral temperature to be reliably measured (the system will either give a good reading or something ...

Thanks Mathews, i would presume that this would work only for rails in tension. i am imagining an analogy of a rubber band stretched between two points, and the force required to cause any transverse displacement of any point to be generally a function ...

Hi Neeraj- There is a device called a VERSE test; the equipment is sold by Pandrol. It basically does as you describe; clips are removed from a length (about 30 meters) of rail and the device pulls the rail up while measuring several parameters. This ...

are there any established method to ascertain the thermal stresses in an LWR rail in a non destructive manner (i would rule out releasing the rail fittings over a ling length to measure movement of a free rail). i say an experimental set up once wherein ...

Thanks a lot Davis for bringing forth so much information. Particularly appreciate your highlighting that coatings may not only reduce peak hot temperatures, but ALSO have potential for raising cold weather temperatures. In India we have a maximum rail ...