Full Content is available to subscribers

Subscribe/Learn More  >

The Application of Ultrasound as a Tool for Studying Contact Stresses in Railway Engineering Component Contacts

[+] Author Affiliations
M. B. Marshall, R. Lewis, R. S. Dwyer-Joyce

University of Sheffield, Sheffield, UK

Paper No. RTD2005-70039, pp. 83-88; 6 pages
  • ASME/IEEE 2005 Joint Rail Conference
  • Joint Rail
  • Pueblo, Colorado, USA, March 16–18, 2005
  • Conference Sponsors: Rail Transportation Division
  • ISBN: 0-7918-3752-1
  • Copyright © 2005 by ASME


The interaction of machine components under loading is an integral part of railway engineering design. It results in a mechanical contact and associated stress distribution, which may be an initiation point for failure modes such as fatigue, fretting or wear. In this study the reflection of ultrasound is used to investigate how real engineering components contact. It is a non-intrusive technique preserving the mechanics of the contact. The concept is simple; an acoustic wave bounces back from an incomplete interface. The higher the contact load, the more conformal will be the contact and hence more of the wave will be transmitted. A spring model is used to determine maps of contact stiffness from contact ultrasonic reflection data. A calibration procedure is then used to determine the pressure. The technique has been used to study two railway engineering applications. The first was a wheel/rail contact. Measurements were taken using specimens cut from sections of wheel and rail. Both the tread/railhead and flange/gauge corner contacts were studied. The second was a wheel hub/axle interference fit. An actual wheelset was used, with a hollow axle to allow access for the ultrasonic transducer.

Copyright © 2005 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In