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52550
  
  

  28
Sep
2023
Technical Reports
Enhancing the Safety of Coupler Knuckles
Author
          Federal Railroad Administration

Subject
                    Rolling Stock

**Keywords:** Coupler, knuckle, failure, fatigue, fracture, life calculation, load case combination, stress, tensile strength, train operation
**Abstract:** The primary objective of this research was to validate the finite element (FE) stress levels obtained during previous research through physical testing of a selected knuckle...
Report Number
              DOT/FRA/ORD-23/32

  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
    22
May
2020
Research Results
Developing Low Service Temperature Steels for Railroads Truck Castings
Author
          Federal Railroad Administration

Subject
                    Rolling Stock

**Keywords:** Low, temperature, steel, brittle, fracture, truck, casting, tensile, yield, Charpy, impact, rolling stock

Report Number
              RR 20-06

  Office
              RDI-22
    28
Jun
2019
Research Results
Improved Truck Castings - Industry Survey and Cost-Benefit Analysis
Author
          Federal Railroad Administration

Subject
                    Rolling Stock

**Keywords:** Casting, side frame, bolster, improved steel
**Abstract:** The Federal Railroad Administration (FRA) sponsored work conducted by Transportation Technology Center, Inc. at their facility. The current work builds on the results of the...
Report Number
              RR 19/16

  Office
              RDI-22

  Pagination
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