0

Full Content is available to subscribers

Subscribe/Learn More  >

Performance of Passenger Rail Vehicles Under Blast Conditions: Testing and Modeling

[+] Author Affiliations
Przemyslaw Rakoczy, Nicholas Wilson

Transportation Technology Center Inc., Pueblo, CO

Ian Bruce

Arup, San Francisco, CA

Stephanie Myers

Transportation Security Administration, Arlington, VA

Paper No. JRC2017-2206, pp. V001T02A002; 10 pages
doi:10.1115/JRC2017-2206
From:
  • 2017 Joint Rail Conference
  • 2017 Joint Rail Conference
  • Philadelphia, Pennsylvania, USA, April 4–7, 2017
  • Conference Sponsors: Rail Transportation Division
  • ISBN: 978-0-7918-5071-8
  • Copyright © 2017 by ASME

abstract

The mission of the U.S. Transportation Security Administration (TSA) is protection of the nation’s transportation systems to ensure freedom of movement for people and commerce. In furtherance of its mission, TSA’s Office of Security Capabilities has contracted with Transportation Technology Center, Inc. (TTCI) and Arup North America Ltd (Arup) to conduct research to quantify the vulnerability of railcars and infrastructure to damage caused by the use of explosives. The main objectives of the ongoing research program are to develop tools to evaluate the performance of existing railcar structures, develop potential mitigation measures for current railcars, and investigate future advanced designs under blast conditions. TTCI performed a series of full-scale tests on three major passenger railcar types: light rail, commuter and transit. Test scenarios were developed based on extensive risk assessment and historical data. Tested scenarios include single internal charges in various locations, simultaneous internal charges and external charges on a station platform. Well instrumented tests provide experimental assessments of existing railcars’ blast performance and data for validation and refinements of finite element blast models developed by Arup. The blast models incorporate sophisticated computational fluid dynamics (CFD) modeling of blast events to predict blast wave propagation and pressure applied on the structure. Hitherto research has focused on the railcar structure. However the test series has provided information on damage to infrastructure, including rail, ties, ballast, and both catenary and third-rail electrification systems. The finite-element blast models will provide railcar designers the means to investigate the effects of blast mitigation measures and reduce the need for physical tests. Several mitigation measures were installed and tested to evaluate their effectiveness. One car was equipped with typical interior components including seats and partition walls. One side of the car was equipped with standard components and the other side with remedial components that are intended to mitigate the effects of a blast. A similar approach was used for windows. This configuration allowed direct comparisons and performance assessments of the blast mitigation measures. Companion modeling and finite element analysis (FEA) of the blast response of the railcar and interior components provided a computational tool by which mitigation measures may be assessed and refined. This paper summarizes recent research sponsored by TSA and conducted by TTCI and Arup on blast vulnerability of railcars and infrastructure to damage caused by the use of explosives.

Copyright © 2017 by ASME

Figures

Tables

Interactive Graphics

Video

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

NOTE:
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