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52550
  
  

  21
Aug
2023
Research Results
Tests to Create Broken Rims in Railroad Wheels
Author
          Federal Railroad Administration

Subject
                    Rolling Stock

**Keywords:** Wheel, broken rim, vertical split rim
**Abstract:** The FRA Office of Research, Development, and Technology and the Association of American Railroads (AAR) support research conducted by Transportation Technology Center, Inc. (...
Report Number
              RR 23-11

  Office
              RDI-22
    21
Aug
2023
Research Results
Summary of Charpy and Dynamic Tear Testing of Bolster Samples
Author
          Federal Railroad Administration

Subject
                    Rolling Stock

**Keywords:** Charpy, dynamic tear, bolster, side frame, brittle failure
**Abstract:** The Federal Railroad Administration (FRA) collaborates with the Association of American Railroads’ (AAR) Coupling System and Truck Castings Committee and Transportation...
Report Number
              RR 23-12

  Office
              RDI-22
    21
Aug
2023
Research Results
Investigation of Radiography Technology for Bolster and Side Frame Inspections
Author
          Federal Railroad Administration

Subject
                    Rolling Stock

**Keywords:** Radiography, grade B+, nondestructive testing, NDT, casting defects
**Abstract:** Information about inhomogeneous areas in castings before they leave the manufacturer could provide useful information for manufacturers and customers. Some of this information...
Report Number
              RR 23-13

  Office
              RDI-22
    21
Aug
2023
Research Results
Tensile Test Results of Samples Taken from Critical Areas of Bolsters
Author
          Federal Railroad Administration

Subject
                    Rolling Stock

**Keywords:** Bolsters, tensile test, brittle failure, castings, grade B+
**Abstract:** The Federal Railroad Administration (FRA) collaborated with the Association of American Railroads’ (AAR) Coupling System and Truck Castings Committee and Transportation...
Report Number
              RR 23-14

  Office
              RDI-22
    21
Aug
2023
Research Results
Analysis of Tread Buildup on Railroad Wheels
Author
          Federal Railroad Administration

Subject
                    Rolling Stock

**Keywords:** Wheel, tread buildup, slide, brake
**Abstract:** The Federal Railroad Administration (FRA) Office of Research, Development, and Technology and the Association of American Railroads (AAR) fund research conducted by...
Report Number
              RR 23-15

  Office
              RDI-22

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