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Survivability of Railroad Tank Car Top Fittings in Rollover Scenario Derailments

[+] Author Affiliations
Robert S. Trent, Anand Prabhakaran, Vinaya Sharma, Srinivas Chitti

Sharma & Associates, Inc., Countryside, IL

Francisco González, III

Federal Railroad Administration, Washington, DC

Paper No. JRC2010-36227, pp. 237-246; 10 pages
doi:10.1115/JRC2010-36227
From:
  • 2010 Joint Rail Conference
  • 2010 Joint Rail Conference, Volume 2
  • Urbana, Illinois, USA, April 27–29, 2010
  • Conference Sponsors: Rail Transportation Division
  • ISBN: 978-0-7918-4907-1 | eISBN: 978-0-7918-3867-9
  • Copyright © 2010 by ASME

abstract

Railroad tank car top fittings are susceptible to damage and failure in rollover derailments, which might result in release of hazardous material lading to the environment. In this paper, we propose and analyze five protective structure concepts designed to eliminate or reduce damage to these top fittings in a rollover derailment, using explicit finite element analyses incorporating nonlinear material and geometry models. Three different rollover scenarios are studied; a nominal rollover, a more severe rollover with greater impact energy, and a rollover combined with longitudinal velocity, with the tank car impacting a concrete barrier. The results from these analyses as well as plans for validation testing are presented in the paper.

Copyright © 2010 by ASME

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