Fatigue behavior of railcar wheel steel at ambient and elevated temperature

McKeighan, Peter C; McMaster, F

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Fatigue behavior of railcar wheel steel at ambient and elevated temperature

2003-08-01
By McKeighan, Peter C ; McMaster, F

File Language:

English

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Creators:

McKeighan, Peter C ; McMaster, F
Corporate Creators:

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

DOT/FRA/ORD-03/19, ; DOT-VNTSC-FRA-02-16, ; Final Report
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final report
Corporate Publisher:

United States. Federal Railroad Administration. Office of Research and Development
Abstract:

This report presents the results of a material property test program undertaken on a Class B railcar wheel steel. This work was performed to obtain relevant fatigue data that may be used in support of a larger effort exploring the applicability of fatigue-based acceptance criteria for passenger and transit railroad wheels. Classical stress-life (S-N) curves were developed for AAR Class B railcar wheel steel with specimens removed from the tread area of an as-forged railcar wheel. The specimen geometry was a standard hourglass fatigue test specimen with a low stress concentration of 1.05. Fatigue testing was performed at stress ratios of -1.0, 0.05, 0.5, and 0.7. Testing was performed at ambient, 500 deg F, and 1000 deg F using high current resistance or convection methods. Endurance limit data were obtained for all R-ratios, although for the 1000 deg F condition there did not appear to be a clear endurance limit transition. These endurance limit data were used to estimate the Sines parameters, A and alpha.
Format:

PDF
Funding:

RR328/R3050
Download URL:

https://rosap.ntl.bts.gov/view/dot/8842/dot_8842_DS1.pdf
File Type:

[PDF - 6.27 MB]
Collection(s):

Volpe Center ; Federal Railroad Administration
Main Document Checksum:

urn:sha-512:93f784e60613071199b48f23477b8bc1c2deca58996c02ad267ac9b78bef9fe9636bf2b5d90933848fba2020704676c6ac326e930a4c6603a52887b82447fd7e

File Language:

English

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