| Title | Fracture Resistance of Railroad Wheels |
|---|---|
| Record ID | 50515 |
| Personal Name Creator |
Carter, C. S.; Caton, R. G. |
| Source | 42p. in various pagings |
| Corporate Creator | John A. Volpe National Transportation Systems Center (U.S.) |
| Corporate Contributor |
United States. Department of Transportation. Federal Railroad Administration. Office of Research and Development |
| Publisher | United States. Urban Mass Transportation Administration |
| Publication Date | 19740901 |
| Language | English |
| Abstract | The effects of manufacturing method, chemical composition, heat treatment, temperature, and loading rate on the plane strain fracture toughness KIC of railroad wheels have been determined. Carbon content of the wheels is shown to be the principal factor which controls their toughness. One hundred wheels which fractured in service are analyzed by means of fracture mechanics procedures. The locations, configurations, and size of thermal and plate cracks which initiated brittle fracture are reviewed, and estimates made of the stress levels which resulted in failure. Estimates have been made of the minimum size of crack which could result in the failure of wheels under adverse service conditions. These are discussed with respect to the minimum size of defect which can be reliably detected by NDT. Included in the report are state-of-the-art reviews on thermal and plate cracking and on the stresses developed in railroad wheels. |
| Rosap ID | dot:11897 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/11897 |
| TRT Terms | Cracking; Failure; Defects; Fracture mechanics; Metallurgy; Wheels; Thermal stresses |
| General Subjects | Crack propagation |
| Classification | AGR - INFRASTRUCTURE - Railroads; NTL - RAIL TRANSPORTATION - RAIL TRANSPORTATION; NTL - RAIL TRANSPORTATION - Rail Safety; NTL - RAIL TRANSPORTATION - Rail Planning and Policy; NTL - SAFETY AND SECURITY - Vehicle Design; NTL - SAFETY AND SECURITY - Rail Safety; NTL - SAFETY AND SECURITY - SAFETY AND SECURITY |
| Geographical Coverage |
United States |
| Contract Number | DOT-TSC-617 |
| Report Number | FRA-ORD&D-75-12; DOT-TSC-FRA-74-10 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/50000/50500/50515/DOT-TSC-FRA-74-10.pdf |
| Format | |
| Database | NTL Digital Repository |