| Title | Stress Measurements in Railroad Wheels Via the Barkhausen Effect |
|---|---|
| Record ID | 49311 |
| Personal Name Creator |
King, R. R.; Barton, J. R.; Perry, W. D. |
| Source | 86p. 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. Office of Research and Development |
| Publisher | United States. Department of Transportation. Federal Railroad Administration |
| Publication Date | 19770201 |
| Language | English |
| Abstract | The feasibility of utilizing the Barkhausen Effect in ferromagnetic steels as a nondestructive means for ascertaining residual stresses in railroad wheels was investigated. Railroad wheels are generally manufactured with compressive stress distributions in the rim to impede the propagation of fissures or thermal cracks caused by brake applications. In service, these compressive stresses may gradually become tensile, thus increasing the potential for wheel failure. Specimens examined using the Barkhausen noise measurement technique included four new wheels and two used wheels. Stress measurements form this nondestructive technique were compared with stress values determined by a dissection method of strain relaxation. Qualitative consistency in these data were observed, although testing of a larger data base will be required to determine the utility of the Barkhausen noise measurement technique for identifying those wheels which are potentially hazardous because of tensile stress buildup. |
| Rosap ID | dot:10769 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/10769 |
| TRT Terms | Electromagnetic devices; Failure; Inspection; Nondestructive tests; Residual stress; Stresses; Thermal stresses; Tire treads; Wheel rims; Wheels |
| Classification | AGR - INFRASTRUCTURE - Railroads; NTL - SAFETY AND SECURITY - Vehicle Design; NTL - SAFETY AND SECURITY - SAFETY AND SECURITY; NTL - SAFETY AND SECURITY - Rail Safety; NTL - RAIL TRANSPORTATION - Rail Safety; NTL - RAIL TRANSPORTATION - RAIL TRANSPORTATION |
| Geographical Coverage |
United States |
| TRIS Online Accession No |
158197 |
| Contract Number | DOT-TSC-713 |
| Report Number | DOT-TSC-FRA-76-32; FRA/ORD-77/11 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/49000/49300/49311/stress_measurements_in_railroad_wheels_via_the_barkhausen_effect.pdf |
| Format | |
| Database | NTL Digital Repository |