ESTIMATION OF ACTUAL RESIDUAL STRESSES DUE TO BRAKING AND CONTACT LOADING OF RAIL VEHICLE WHEELS
A finite element formulation for shakedown stress analysis of rail vehicle wheels is presented, based on a hypothesis that the shakedown state is axisymmetric. The method can be used to estimate shakedown stresses in wheels subjected to combined mechanical (wheel/rail contact) and thermal (temperature gradients and thermal stress due to braking) loads. The formulation includes provisions for initial manufacturing stress, shifting contact locations, and temperature-dependent material properties. Validation results and demonstration example analysis of an actual wheel design are presented.
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- Figures of this document may not be legible in microfiche. Sponsored by John A. Volpe National Transportation Systems Center, Cambridge and Federal Railroad Administration, Washington, DC.
Massachusetts Institute of TechnologyFrancis Bitter National Magnet Laboratory
Cambridge, MA United States 02139
- Holowinski, M
- Bobrov, E S
- Publication Date: 1995-8
- Pagination: 156 p.
- TRT Terms: Dynamics; Finite element method; Rail (Railroads); Residual stress; Shakedown tests; Stresses; Thermal stresses; Train track dynamics; Wheels
- Uncontrolled Terms: Contact stress
- Old TRIS Terms: Axisymmetric loading; Shakedown
- Subject Areas: Operations and Traffic Management; Public Transportation; Railroads; Vehicles and Equipment;
- Accession Number: 00729910
- Record Type: Publication
- Report/Paper Numbers: DOT-VNTSC-FRA-95-13
- Files: NTL, TRIS
- Created Date: Dec 16 1997 12:00AM