Allowable Bending Fatigue Stress of Rail in Terms of Hardness
Publication: Practice Periodical on Structural Design and Construction
Volume 21, Issue 1
Abstract
In an earlier paper, allowable bending fatigue stress was expressed in terms of ultimate tensile strength. For many reasons, it is useful to express allowable bending fatigue stress in terms of hardness. Hardness is occasionally used to obtain a quick approximation of tensile strength. The rail grades are named by hardness because they are directly related to the wear properties. Many metal alloys are heat treatable, and the hardness, rather than the tensile strength, is known. In this technical note, the allowable bending fatigue stress is expressed in terms of hardness. The applicability of the derived relation on American Railway Engineering and Maintenance-of-Way Association steel, welded rail joints, and head-hardened rail sections is discussed, which has implications in rail-section design. This note provides an addition and supplement to the earlier paper.
Get full access to this article
View all available purchase options and get full access to this article.
References
AFNOR (Association Francaise de Normalisation). (2006). Aluminothermic welding of rails, Part 1—Approval of welding processes, Paris.
AREMA (American Railway Engineering and Maintenance-of-Way Association). (2013). Manual for railway engineering, Lanham, MD.
Bannantine, J., Corner, J., and Handrock, J. (1990). Fundamentals of metal fatigue analysis, Prentice Hall Inc., Englewood Cliffs, NJ.
Esveld, C. (2001). Modern railway technology, MRT-Productions, Netherlands.
Frank, N. (2012). “Developing maintenance rail.” Int. Railway J., 52(12), 18–19.
Hasan, N. (2014). “Allowable bending fatigue stress of rails.” Pract. Period. Struct. Des. Constr., 04014033.
Lichtberger, B. (2005). Track compendium—Formation, permanent way, maintenance, economics, Eurail Press, Hamburg, Germany.
Shigley, J. E., Mischke, C. R., and Budyas, R. G. (2001). Mechanical engineering design, 8th Ed., McGraw Hill.
TCRP (Transit Cooperative Research Program). (2000). “Track design handbook for light rail transit.” Rep. No. 57, National Academy Press, Washington, DC.
TCRP (Transit Cooperative Research Program). (2012). “Track design handbook for light rail transit.” Rep. No. 155, National Academy Press, Washington, DC.
Information & Authors
Information
Published In
Practice Periodical on Structural Design and Construction
Volume 21 • Issue 1 • February 2016
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Feb 11, 2014
Accepted: Jan 29, 2015
Published online: Jul 7, 2015
Discussion open until: Dec 7, 2015
Published in print: Feb 1, 2016
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.