Fatigue behavior of AAR Class A railroad wheel steel at ambient and elevated temperatures.

McMaster, Fraser J.; Robledo, Guadulupe B.; Southwest Research Institute

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Fatigue behavior of AAR Class A railroad wheel steel at ambient and elevated temperatures.

2006-12-01
By McMaster, Fraser J. ; Robledo, Guadulupe B.

[PDF-4.73 MB]

English

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Creators:

McMaster, Fraser J. ; Robledo, Guadulupe B.

McMaster, Fraser J. ; Robledo, Guadulupe B. Less -
Corporate Creators:

Southwest Research Institute
Corporate Contributors:

John A. Volpe National Transportation Systems Center (U.S.) ; United States. Department of Transportation. Federal Railroad Administration

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

[+]

Atmospheric Temperature Car Wheels (Railroads) Disc Brakes Fatigue (Mechanics) Fatigue Tests Loading Load Tests Steel Tensile Strength Wheelsets (Railroads)
Publication/ Report Number:

DOT-VNTSC-FRA-06-01 ; DOT/FRA/ORD-06/15

DOT-VNTSC-FRA-06-01 ; DOT/FRA/ORD-06/15 Less -
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

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

This report documents a test program to determine the material properties (chemical composition, tensile, and fatigue) at ambient and elevated temperatures of a Class A wheel steel as designated by the Association of American Railroads. The 3 temperatures examined included ambient room temperature, 500 °F, and 1000 °F. The fatigue properties determined at ambient temperature are required to address rail vehicle wheels equipped with disc brakes, which are not exposed to frictional heating during stop-braking. Researchers performed fatigue testing to determine the S-N curves at each of the three temperatures. Furthermore, the research team performed a large number of fatigue tests at R-ratios of -1.0 and 0.05 for each of the test temperatures to enable reliable estimates of the Sines parameters, A and α.
Format:

PDF
Funding:

RR28/DB032
Collection(s):

Federal Railroad Administration Volpe Center
Main Document Checksum:

[+]

urn:sha256:cf7a11c36ae5b712f6e9ab1c9cf15fabf903a90b505badf40463a3cfd407b361
Download URL:

https://rosap.ntl.bts.gov/view/dot/9451/dot_9451_DS1.pdf
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Fatigue behavior of AAR Class A railroad wheel steel at ambient and elevated temperatures.

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