Keywords: Rolling contact fatigue, contact stress, crack growth, crack initiation, creep, fatigue strength, heat treatment, pearlite, wheel damage map, quenching, residual stress, S-660, shakedown, time-temperature-transformation, tread-braking
Keywords: Positive Train Control, Generalized Train Movement Simulator, I-ETMS, risk assessment, level splitting, engineering reliability metrics
Abstract: The Federal Railroad Administration funded the BNSF San Bernardino Case Study to verify its Generalized Train Movement Simulator (GTMS) risk assessment capabilities on a planned...
Keywords: Roller Rig, Wheel-Rail Contact Mechanics, Rail Vehicle Dynamics, Contact Patch Dynamics, Wheel Forces and Moments
Abstract: A need exists for a new test rig design with advanced sensing technologies that will allow the railroad industry and regulatory agencies to better understand the wheel-rail...
Keywords: Plastic tie, composite tie, tie insertion, tie nipping, bending loads
Abstract: Damage to plastic composite ties during handling and track installation has been reported by a number of railroads. Results from a survey conducted to identify specific handling...
Keywords: Strain levels, joint bar fatigue analysis, residual stress, joint bar strength
Abstract: Detailed analysis of measured bending strains shows that the foundation deflections have the most significant effect on the magnitude of strains. All other factors, such as track...