Fatigue behavior of railcar wheel steel at ambient and elevated temperature

McKeighan, Peter C; McMaster, F; Southwest Research Institute; John A. Volpe National Transportation Systems Center (U.S.); United States. Federal Railroad Administration

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Fatigue behavior of railcar wheel steel at ambient and elevated temperature

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

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English

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Details:

Creators:

McKeighan, Peter C ; McMaster, F

McKeighan, Peter C ; McMaster, F Less -
Corporate Creators:

Southwest Research Institute ; John A. Volpe National Transportation Systems Center (U.S.) ; United States. Federal Railroad Administration

Southwest Research Institute ; John A. Volpe National Transportation Systems Center (U.S.) ; United States. Federal Railroad Administration Less -
Subject/TRT Terms:

[+]

Fatigue (Mechanics) Fatigue Tests Railroad Cars Steel Stress Ratio Temperature Wheels
Publication/ Report Number:

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

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

Tech Report
TRIS Online Accession Number:

969904
Edition:

Final report
Corporate Publisher:

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

NTL-RAIL TRANSPORTATION-RAIL TRANSPORTATION;NTL-RAIL TRANSPORTATION-Rail Safety;NTL-SAFETY AND SECURITY-Rail Safety;
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
Collection(s):

Federal Railroad Administration Volpe Center
Main Document Checksum:

[+]

urn:sha256:e8fc738cbab727dce5caa3403e39db6a93d92b4b23a9bd93a9aabdd7daa01f36
Download URL:

https://rosap.ntl.bts.gov/view/dot/8842/dot_8842_DS1.pdf
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Fatigue behavior of railcar wheel steel at ambient and elevated temperature

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