Measuring stress to combat sun kinks

摘要

The benefits that continuous welded rail have brought to the railroad industry are too numerous to count. But cwr also brought its own peculiar problems, including track buckling in hot weather and pull-aparts when the temperature drops. Laying the track at a rail neutral temperature removes most of these problems, but things can change in the harsh environment in which track exists. That's why measuring the stress state of the railroad is so very important. Unfortunately, measuring the stress state is also very difficult. But new methods and new research are bringing new hope.