Fatigue behavior of AAR Class A railroad wheel steel at ambient and elevated temperatures.

Details

• Creators:
  McMaster, Fraser J. ; Robledo, Guadulupe B.
• Corporate Creators:
  Southwest Research Institute
• Corporate Contributors:
  John A. Volpe National Transportation Systems Center (U.S.) ; United States. Department of Transportation. Federal Railroad Administration
• Subject/TRT Terms:
  • Fatigue (Mechanics)
  • Fatigue tests
  • Wheelsets (Railroads)
  • Atmospheric temperature
  • Car wheels (Railroads)
  • Disc brakes
  • Steel
  • Tensile strength
  • Load tests
  • Loading
• Publication/ Report Number:
  DOT-VNTSC-FRA-06-01 ; DOT/FRA/ORD-06/15
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Department of Transportation. Federal Railroad Administration
• Abstract:
  This report documents a test program to determine the material properties (chemical composition, tensile, and fatigue) at ambient and elevated temperatures of a Class A wheel steel as designated by the Association of American Railroads. The 3 temperatures examined included ambient room temperature, 500 °F, and 1000 °F. The fatigue properties determined at ambient temperature are required to address rail vehicle wheels equipped with disc brakes, which are not exposed to frictional heating during stop-braking. Researchers performed fatigue testing to determine the S-N curves at each of the three temperatures. Furthermore, the research team performed a large number of fatigue tests at R-ratios of -1.0 and 0.05 for each of the test temperatures to enable reliable estimates of the Sines parameters, A and α.
• Format:
  PDF
• Funding:
  RR28/DB032
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/9451/dot_9451_DS1.pdf
• File Type:
  [PDF - 4.73 MB]
• Collection(s):
  Volpe Center ; Federal Railroad Administration
• Main Document Checksum:
  urn:sha256:cf7a11c36ae5b712f6e9ab1c9cf15fabf903a90b505badf40463a3cfd407b361