| Title | Fatigue behavior of railcar wheel steel at ambient and elevated temperature |
|---|---|
| Record ID | 34392 |
| Personal Name Creator |
McKeighan, Peter C; McMaster, F |
| Source | 56p. in various pagings |
| Corporate Creator | Southwest Research Institute; 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 | 20030800 |
| Language | English |
| Abstract | This report presents the results of a material property test program undertaken on a Class B railcar wheel steel. This work was performed to obtain relevant fatigue data that may be used in support of a larger effort exploring the applicability of fatigue-based acceptance criteria for passenger and transit railroad wheels. Classical stress-life (S-N) curves were developed for AAR Class B railcar wheel steel with specimens removed from the tread area of an as-forged railcar wheel. The specimen geometry was a standard hourglass fatigue test specimen with a low stress concentration of 1.05. Fatigue testing was performed at stress ratios of -1.0, 0.05, 0.5, and 0.7. Testing was performed at ambient, 500 deg F, and 1000 deg F using high current resistance or convection methods. Endurance limit data were obtained for all R-ratios, although for the 1000 deg F condition there did not appear to be a clear endurance limit transition. These endurance limit data were used to estimate the Sines parameters, A and alpha. |
| Rosap ID | dot:8842 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/8842 |
| TRT Terms | Mechanical fatigue; Fatigue tests; Railroad cars; Steel; Stress ratio; Temperature; Wheels |
| Classification | NTL - RAIL TRANSPORTATION - RAIL TRANSPORTATION; NTL - RAIL TRANSPORTATION - Rail Safety; NTL - SAFETY AND SECURITY - Rail Safety |
| Geographical Coverage |
United States |
| TRIS Online Accession No |
969904 |
| Contract Number | RR328/R3050 |
| Report Number | DOT/FRA/ORD-03/19,; DOT-VNTSC-FRA-02-16,; Final Report |
| Availability | Volpe National Transportation Systems Center, Technical Reference Center |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/34000/34300/34392/DOT-VNTSC-FRA-02-16.pdf |
| Format | |
| Database | NTL Digital Repository |