Measuring SFT in rails - verse & DSG mesurements on ECML and WCML (RR-STR-94-089)

A new method of measuring stress free temperature (SFT) in railway track is being developed by British Rail Research. This relies on the fact that the vertical stiffness of the rail increases with increasing longitudinal force. A measurement system (VERSE - VErtical Rail Stiffness) has been manufactured, and developed and...