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52550
  
  

  30
Sep
2022
Research Results
Feasibility of Special Trackwork Inspection Using Ultrasonics
Author
          Federal Railroad Administration

Subject
                    Track

**Keywords:** Special trackwork, frogs, crossing diamond, nondestructive evaluation, NDE, ultrasonic testing, UT, microstructure, microhardness, coarse grain, track, test sample

Report Number
              RR 22-25

  Office
              RDI-22
    6
Aug
2018
Technical Reports
Next-Generation Foundations for Special Trackwork – Phase II
Author
          Federal Railroad Administration

Subject
                    Track

**Keywords:** Dynamic load environment, special trackwork frog foundations, wheel/rail impact, W/R, modeling, High Tonnage Loop, HTL, Facility for Accelerated Service Testing, FAST
**Abstract:** Transportation Technology Center, Inc. (TTCI) conducted this study under a research and development plan funded by the Federal Railroad Administration (FRA), and the work was...
Report Number
              DOT/FRA/ORD-18/29

  Office
              RDI-21
    22
Feb
2013
Technical Reports
Next-Generation Foundations for Special Trackwork – Phase I
Author
          Xinggao Shu, David Davis, and Muhammad Akhtar

Subject
                    Track,
                    Tracks & Structures,
                    Track/Train Interactions

**Keywords:** Dynamic load environment, special trackwork frog foundations, wheel-rail impact, modeling
**Abstract:** This report reviews the dynamic load environment and failure modes of special trackwork frog foundations. Key measurements taken under a 39,000-pound wheel load traffic at the...
Report Number
              DOT/FRA/ORD-13/10

  Office
              RRD
    13
Mar
1997
Technical Reports
Effect of Track Twist on Vehicle Dynamic Performance
Author
          Association of American Railroads

Subject
                    Track

**Keywords:** Track Twist, Track Geometry, Wheel/Rail Friction
**Abstract:** Results of tests conducted at the Transportation Technology Center (TTC), Pueblo, Colorado, indicate that vehicle response to track twist varies significantly with car type....
Office
              RRD
    1
May
1983
Technical Reports
Determination of Residual Stresses in Rails
Author
          Federal Railroad Administration; J.J. Groom

Subject
                    Fatigue Management,
                    Track,
                    Tracks & Structures,
                    Track/Train Interactions

**Keywords:** Fatigue, Rail stress
**Abstract:** A destructive sectioning technique for measuring the complete three-dimensional residual stresses in a rail cross section was developed. The technique was applied to four tangent...
Report Number
              DOT/FRA/ORD-83/05

  Office
              RRD

  Pagination
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