| Title | Determination of Residual Stresses in Rails |
|---|---|
| Record ID | 50229 |
| Personal Name Creator |
Groom, J. J. |
| Source | 72p. in various pagings |
| Corporate Creator | Battelle Memorial Institute. Columbus Laboratories |
| Corporate Contributor |
John A. Volpe National Transportation Systems Center (U.S.); United States. Department of Transportation. Federal Railroad Administration. Office of Research and Development |
| Publisher | United States. Department of Transportation. Federal Railroad Administration |
| Publication Date | 19830501 |
| Language | English |
| Abstract | A destructive sectioning technique for measuring the complete three-dimensional residual stresses in a rail cross section was developed. The technique was applied to four tangent rail specimens: two 136-pound specimens were taken from FAST (Facility for Accelerated Service Testing), Pueblo, Colorado [83 and 270 MGT (million gross tons)] and two 132-pound specimens were obtained from revenue service (100 and 300 MGT). The results show that: 1) high compressive stresses exist in and near the tread surface of the rail, particularly near the edges of the wear pattern where the plastic flow of metal is extreme; 2) high tensile stresses are found just below the tread surface with peak stresses near the edges of the tread wear pattern; and 3) for the traffic ranges examined (83 to 300 MGT), the tensile stresses internal to the rail head increased with increasing MGT. |
| Rosap ID | dot:11622 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/11622 |
| TRT Terms | Railroad rails; Residual stress; Specimens; Mechanical fatigue |
| General Subjects | Compressive stress; Million gross tons; Rail cross section; Tensile stress |
| Classification | AGR - INFRASTRUCTURE - Railroads; NTL - RAIL TRANSPORTATION - Rail Safety; NTL - RAIL TRANSPORTATION - RAIL TRANSPORTATION; NTL - SAFETY AND SECURITY - Rail Safety; NTL - SAFETY AND SECURITY - SAFETY AND SECURITY |
| Geographical Coverage |
United States |
| Contract Number | DOT-TSC-1426; RR219/R2309 |
| Report Number | DOT-TSC-FRA-81-21; DOT/FRA/ORD-83/05 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/50000/50200/50229/DOT-TSC-FRA-81-21.pdf |
| Format | |
| Database | NTL Digital Repository |