| Title | Estimation of Residual Stresses in Railroad Commuter Car Wheels Following Manufacture [Final Report] |
|---|---|
| Record ID | 34384 |
| Personal Name Creator |
Gordon, J E; Perlman, A. B. |
| Source | 106p. in various pagings |
| Corporate Creator | John A. Volpe National Transportation Systems Center (U.S.); United States. Department of Transportation. Federal Railroad Administration |
| Publisher | United States. Federal Railroad Administration. Office of Research and Development |
| Publication Date | 20030600 |
| Language | English |
| Abstract | A computer simulation of the manufacturing process of railroad car wheels is described to determine the residual stresses in the wheel following fabrication. Knowledge of, and the ability to predict, these stresses is useful in assessing the ability of wheels to perform safely under expected service conditions. A finite element analysis is performed which simulated portions of the processing sequence. A heat transfer analysis determines the transient thermal distribution during quenching. The mechanical (stress) analysis employs an elastic-plastic material model with kinematic hardening and includes viscoelastic creep behavior. A baseline scenario is developed to represent the best available estimate of processing parameters and material properties for the analysis. Baseline predictions indicate development of residual circumferential (hoop) compression on the order of 200 MPa (29 ksi) in the wheel rim to a depth of approximately 3.75 cm (1.48 in.). Modifications to the baseline scenario were studied in order to understand which characteristics of the analysis resulted in the most significant changes in the results. |
| Rosap ID | dot:8839 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/8839 |
| TRT Terms | Creep; Finite element method; Heat transfer; Manufacturing; Mechanical analysis; Railroad cars; Residual stress; Simulation; Viscoelasticity; Wheels |
| General Subjects | Quenching |
| Classification | NTL - PUBLIC TRANSPORTATION - Rail Transit; NTL - PUBLIC TRANSPORTATION - Transit Safety and Security; NTL - RAIL TRANSPORTATION - Rail Safety; NTL - SAFETY AND SECURITY - Rail Safety |
| Geographical Coverage |
United States |
| OCLC | 54347219 |
| TRIS Online Accession No |
969900 |
| Contract Number | R2050/RR228 |
| Report Number | DOT/FRA/ORD-03/24,; DOT-VNTSC-FRA-02-02,; Final Report |
| Availability | Volpe National Transportation Systems Center, Technical Reference Center |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/34000/34300/34384/DOT-VNTSC-FRA-02-02.pdf |
| Format | |
| Database | NTL Digital Repository |