SAFE THERMAL LOADS

The evaluation of a railway car wheel design should include studies of the wheel's response to thermal and mechanical loadings. The damage caused by these loadings is a major indication of the value of a given wheel design. Due to the complexity of the problem, there certainly does not appear to be a unique procedure for this analysis. At the University of Illinois we have proposed a simple model which retains the sophistication necessary to reasonably represent the problem. The method includes an elastic-plastic thermal stress analysis using material properties as a function of loading rate and temperature. Residual stress changes from the thermal loading are considered along with the oscillating stresses developed from the rail load that are conducive to fatigue damage. Experimental results are presented for comparison with theory.

  • Supplemental Notes:
    • Supported in cooperation with the Association of American Railroads, Federal Railroad Administration and Railway Wheel Association. Sixth International Wheelset Congress, October 22-26, 1978, Colorado Springs, Colorado.
  • Corporate Authors:

    American Iron and Steel Institute

    230 North Michigan Avenue
    Chicago, IL  United States  60601
  • Authors:
    • Wetenkamp, H R
    • Kipp, R M
  • Publication Date: 1978-10

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 29 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00184166
  • Record Type: Publication
  • Source Agency: American Iron and Steel Institute
  • Report/Paper Numbers: Volume 2 Tech Paper
  • Files: TRIS
  • Created Date: Dec 29 1978 12:00AM