Numerical Modeling of Load and Stress on the Contact Surface of a Turnout and a Railway Vehicle
Publication: Journal of Transportation Engineering
Volume 139, Issue 5
Abstract
In operating conditions, railroads are subject to abrasive and fatigue wear. Their durability period depends on the properties of the materials from which rail sections are made, the characteristics and value of the load, and the distribution of contact stresses and strain in the places at which wheels contact track and turnout components. Forecasting of the real load and the resultant contact stress and strain makes it possible to rationally design railway turnouts and correctly select the material to be used for their components. For these reasons, characteristics of load and, subsequently, distributions of contact stresses and deformations in places of wheel/turnout-component contact were determined in numerical calculations using Universal Mechanism and MSC.MARC computer applications. It was determined that the distributions of contact and reduced stresses depend on the load value. The highest reduced stresses occur in the contact zone and right under the rolling surface of the section.
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Acknowledgments
The presented results were obtained within Project No. PBU-70/RM2/2011, which was completed using the resources of the National Science Centre.
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Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 139 • Issue 5 • May 2013
Pages: 533 - 539
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Jul 9, 2012
Accepted: Oct 19, 2012
Published online: Oct 20, 2012
Published in print: May 1, 2013
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