Effects of wear and service conditions on residual stresses in commuter car wheels

Details

• Creators:
  Gordon, Jeff ; Perlman, A. Benjamin
• Corporate Creators:
  John A. Volpe National Transportation Systems Center (U.S.)
• Subject/TRT Terms:
  • Commuter cars
  • Residual stress
  • Stresses
  • Wheel rims
  • Cracking
• Resource Type:
  Proceedings
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Department of Transportation. Federal Railroad Administration
• Abstract:
  This paper illustrates application of the shakedown residual stress estimation technique to ; assess the effects of service conditions on wheel residual stresses. The examples described provide the ; technical details on how the technique is practically applied and typical results. Operational conditions ; representative of a commuter railroad have been used in the simulations. Results are presented for a ; baseline commuter vehicle illustrating the effects of loss of wheel tread material due to wear or wheel reprofiling ; and the resulting redistribution of residual stresses. ; Results of this study indicate that the initial residual compressive stress present in the wheel rim can be ; reversed to tension under nominal operating conditions. As it is known that such reversal can lead to the ; formation and growth of thermal cracks originating at the wheel tread, and that such cracks can pose a ; threat to safe rail operations, the ability to predict the influence of service conditions on wheel residual ; stresses becomes a useful tool for assessing proposed changes to operating characteristics.
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• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/8993/dot_8993_DS1.pdf
• File Type:
  [PDF - 777.63 KB]
• Collection(s):
  Volpe Center ; Federal Railroad Administration
• Main Document Checksum:
  urn:sha-512:ecddedde6eb8a8c1b817e086881f44e3f4f0b8e07a7498e3ea82c3396416a1683156bb9779fb4b15c40f61f8c73e319ab693766d7ebf8438617b16abd9e22118