Effects of service conditions on the as-manufactured residual stress distribution in commuter car wheels

Gordon, Jeff; Perlman, A. Benjamin; John A. Volpe National Transportation Systems Center (U.S.); Tufts University

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Effects of service conditions on the as-manufactured residual stress distribution in commuter car wheels

2001-09-01
By Gordon, Jeff ; Perlman, A. Benjamin

[PDF-137.88 KB]

English

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Creators:

Gordon, Jeff ; Perlman, A. Benjamin

Gordon, Jeff ; Perlman, A. Benjamin Less -
Corporate Creators:

John A. Volpe National Transportation Systems Center (U.S.) ; Tufts University

John A. Volpe National Transportation Systems Center (U.S.) ; Tufts University Less -
Subject/TRT Terms:

[+]

Car Wheels (Railroads) Commuter Commuter Cars Cracking Heat Railroad Railroads Residual Stress Residual Stresses Stresses Stress Reversal Thermal Cracking Thermal Stresses Wheels
Resource Type:

Proceedings
Corporate Publisher:

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

The effects of simulated service conditions on the as-manufactured residual stress

distribution in commuter car wheels are investigated. The residual stresses, those

stresses which remain after all applied loads are removed, can encourage the formation

and growth of fatigue cracks. The subject wheels are quenched following initial

forging to increase hardness and induce residual compression in the rim. These

features combine to render to the wheel more resistant to fatigue crack formation and to

reduce the risk of failure in service. However, the as-manufactured net rim

compressive residual stress may be reversed to tension when subjected to service

loading, which includes tread braking, in railroad commuter operations. Tensile

stresses at the wheel tread create an environment conducive to the formation of surface

cracks that may threaten the safety of train operations.
Format:

PDF
Collection(s):

Federal Railroad Administration Volpe Center
Main Document Checksum:

[+]

urn:sha256:9cb6e35610a057b98d8d3d51580c85f0d2179b3c397fdb3472a3723e507400e3
Download URL:

https://rosap.ntl.bts.gov/view/dot/8996/dot_8996_DS1.pdf
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Effects of service conditions on the as-manufactured residual stress distribution in commuter car wheels

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