A COMPARISON OF THE STRESS LEVELS IN ONE- AND TWO-WEAR 36- IN. DIAMETER WHEELS UNDER SIMULATED SERVICE LOADS
An investigation of the stress level produced in 36-in. wheels during normal service operation, including the effects of wear, is presented in this publication. In particular, the stress fields were determined for both one- and two-wear wheels of different geometric design and manufacture. Stress fields were generated for each one-wear wheel design in both the new and worn configurations. However, stress fields were determined for the new, returned, and worn tread profiles for the two-wear wheels. From the analysis, it was concluded that decreasing the rim thickness of 36-in. (0.914-m) wheels increases the state of stress in locations critical to the formation of shattered rims, plate cracks, and back-rim cracks. The increase in level of stress is at a low rate and low level during the first wear period of a two-wear wheel. A more rapid rate of increase of stress to levels of the same approximate magnitude for the second wear period of two-wear wheels and the life of one-wear wheels is observed. Based on the above, it is suggested that one-wear wheels would spend more of their service life in a state of high stress than would two-wear wheels.
- Contributed by the Rail Transportation Division of the ASME for presentation at the Joint ASME-IEEE Railroad Conference held in Washington, D.C., March 30-April 1, 1977.
American Society of Mechanical EngineersTwo Park Avenue
New York, NY United States 10016-5990
- Novak, G E
- Stone, D H
- Publication Date: 1977-3-30
- Features: Figures; References;
- Pagination: 12 p.
- TRT Terms: Defects; Failure; Stresses; Structural analysis; Thermal stresses; Wear; Wheel rims; Wheels
- Old TRIS Terms: One wear wheels; Two wear wheels; Wheel failure; Wheel flaws; Wheel rim stresses; Wheel stresses; Wheel thermal stresses
- Subject Areas: Railroads; Vehicles and Equipment;
- Accession Number: 00152434
- Record Type: Publication
- Source Agency: American Society of Mechanical Engineers
- Report/Paper Numbers: Paper 77-RT-13 Conf Paper
- Files: TRIS
- Created Date: May 11 1977 12:00AM