Experimental determination of release fields in cut railroad car wheels

Details

• Creators:
  Czarnek, R.
• Corporate Contributors:
  John A. Volpe National Transportation Systems Center (U.S.) ; Concurrent Technologies Corporation ; United States. Department of Transportation. Federal Railroad Administration. Office of Research and Development
• Subject/TRT Terms:
  • Car wheels (Railroads)
  • Residual stress
  • Measurement
  • Strain measurement
  • Interferometry
  • Cutting
  • Detectors
  • Interferometers
  • Moire effects
  • Rail transportation
  More +
• Publication/ Report Number:
  DOT-VNTSC-FRA-96-13 ; DOT/FRA/ORD-97/06
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final report Jul 1993-Nov 1995
• Corporate Publisher:
  John A. Volpe National Transportation Systems Center (U.S.)
• Abstract:
  A new approach to the measurement of residual stresses in railroad wheels is investigated using a saw cut method of releasing stresses in the structure. High-sensitivity moire interferometry combined with Michelson interferometry provides full-field information about distribution of displacements around a saw cut notch on both flat surfaces of the rim of a wheel. The precision of the measurements is better than 100nm. Additional discrete gages provide information about the absolute displacements of the points on the rim with respect to the center of the wheel and strains in selected locations.
• Format:
  PDF
• Funding:
  R-9050/RR-928
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/8493/dot_8493_DS1.pdf
• File Type:
  [PDF - 26.56 MB]
• Collection(s):
  Volpe Center ; Federal Railroad Administration
• Main Document Checksum:
  urn:sha-512:ac45d0593e3a435fddb3f2bd273730440736de82b92961e943e4971db8e6dd63d6474d863d88358b4fcc78fb5811780fab9976298462838e9ac79c5583c96844