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.
- 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.
American Iron and Steel Institute230 North Michigan Avenue
Chicago, IL United States 60601
- Wetenkamp, H R
- Kipp, R M
- Publication Date: 1978-10
- Features: Figures; References; Tables;
- Pagination: 29 p.
- TRT Terms: Braking performance; Cracking; Finite element method; Stresses; Structural analysis; Thermal degradation; Thermal stresses; Wheel loads; Wheels
- Old TRIS Terms: Thermal cracks; Tread braking; Wheel stresses; Wheel thermal stresses
- Subject Areas: Railroads; Vehicles and Equipment;
- 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