United States Department of Transportation
i
Effects of Temperature on Wheel Shelling
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2020-05-01
[PDF-1.36 MB]
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Edition:Technical Report 2014 to 2015
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Abstract:In 2014, Transportation Technology Center, Inc. (TTCI) reviewed and summarized published data and the capabilities of twin disk machines that included a unique machine that allows elevated temperature testing. TTCI suggested a methodology for future testing on this thermally controlled twin disk machine. Researchers reviewed existing literature regarding the relationship between temperature and wheel properties such as yield strength, residual stress, and shelling life. Comments are included on historical changes in wheel life, trends in removal causes, and important changes to the wheel operating environment such as the introduction of the AAR M-976 truck and changes to the AAR brake ratio requirements.
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