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52550
  
  

  21
Jun
2022
Technical Reports
Framework for Wheel Life Model – Phase I
Author
          Federal Railroad Administration

Subject
                    Track/Train Interactions

**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

Report Number
              DOT/FRA/ORD-22/25

  Office
              RDI-22
    25
Jul
2014
Technical Reports
Evaluation of Wheel/Rail Contact Mechanics: Concepts Report
Author
          Mehdi Ahmadian and Michael Craft

Subject
                    Track,
                    Tracks & Structures,
                    Track/Train Interactions

**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...
Report Number
              DOT/FRA/ORD-14/28

  Office
              RDI-21
    24
Jul
2014
Technical Reports
Construction Loads Experienced by Plastic Composite Ties
Author
          Richard Reiff

Subject
                    Track,
                    Tracks & Structures,
                    Track/Train Interactions

**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...
Report Number
              DOT/FRA/ORD-14/25

  Office
              RDI-21
    18
Jul
2014
Technical Reports
Load Environment of Rail Joint Bars—Phase II Joint Bar Service Environment and Fatigue Analysis
Author
          Muhammad Akhtar, Kevin Koch, Roy Wiley, and David Davis

Subject
                    Track,
                    Tracks & Structures,
                    Track/Train Interactions

**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...
Report Number
              DOT/FRA/ORD-14/22

  Office
              RDI-21
    24
Jan
2003
Technical Reports
Vertical Track Modulus in Plastic Composite Tie Test Zones at FAST
Author
          Federal Railroad Administration; Rafael Jimenez

Subject
                    Track,
                    Tracks & Structures,
                    Track/Train Interactions

**Keywords:** Heavy axle load, stiffness,
**Abstract:** Transportation Technology Center (TTCI) conducted vertical track modulus tests on existing plastic composite tie test zones on the High Tonnage Loop (HTL) at the Federal Railroad...
Report Number
              DOT/FRA/ORD-03/13

  Office
              RRD

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