| Title | Fatigue behavior of AAR Class A railroad wheel steel at ambient and elevated temperatures. |
|---|---|
| Record ID | 42446 |
| Personal Name Creator |
McMaster, Fraser J.; Robledo, Guadulupe B. |
| Source | 60p. in various pagings |
| Corporate Creator | Southwest Research Institute |
| Corporate Contributor |
John A. Volpe National Transportation Systems Center (U.S.); United States. Department of Transportation. Federal Railroad Administration |
| Publisher | United States. Department of Transportation. Federal Railroad Administration |
| Publication Date | 20061200 |
| Language | English |
| Abstract | This report documents a test program to determine the material properties (chemical composition, tensile, and fatigue) at ambient and elevated temperatures of a Class A wheel steel as designated by the Association of American Railroads. The 3 temperatures examined included ambient room temperature, 500 °F, and 1000 °F. The fatigue properties determined at ambient temperature are required to address rail vehicle wheels equipped with disc brakes, which are not exposed to frictional heating during stop-braking. Researchers performed fatigue testing to determine the S-N curves at each of the three temperatures. Furthermore, the research team performed a large number of fatigue tests at R-ratios of -1.0 and 0.05 for each of the test temperatures to enable reliable estimates of the Sines parameters, A and α. |
| Rosap ID | dot:9451 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/9451 |
| TRT Terms | Mechanical fatigue; Fatigue tests; Railcar wheelsets; Atmospheric temperature; Railroad wheels; Disc brakes; Steel; Tensile strength; Load tests |
| General Subjects | Loading |
| Classification | NTL - RAIL TRANSPORTATION - RAIL TRANSPORTATION |
| Geographical Coverage |
United States |
| Contract Number | RR28/DB032 |
| Report Number | DOT-VNTSC-FRA-06-01; DOT/FRA/ORD-06/15 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/42000/42400/42446/ord0615.pdf |
| Format | |
| Database | NTL Digital Repository |