Stress Measurements in Railroad Wheels Via the Barkhausen Effect

King, R. R.; Barton, J. R.; Perry, W. D.

i

Stress Measurements in Railroad Wheels Via the Barkhausen Effect

1977-02-01
By King, R. R. ; Barton, J. R. ; Perry, W. D.

File Language:

English

Details

Creators:

King, R. R. ; Barton, J. R. ; Perry, W. D.
Corporate Creators:

Southwest Research Institute
Corporate Contributors:

John A. Volpe National Transportation Systems Center (U.S.) ; United States. Department of Transportation. Federal Railroad Administration. Office of Research and Development
Subject/TRT Terms:
Publication/ Report Number:

DOT-TSC-FRA-76-32 ; FRA/ORD-77/11
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

United States. Department of Transportation. Federal Railroad Administration
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.
Format:

PDF
Funding:

DOT-TSC-713
Download URL:

https://rosap.ntl.bts.gov/view/dot/10769/dot_10769_DS1.pdf
File Type:

[PDF - 5.15 MB]
Collection(s):

Volpe Center
Main Document Checksum:

urn:sha256:c084d24f80e1f1e9e671b3145f2a2338b2d6265e16ce652d355dea4c41b968ac

File Language:

English

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