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Civil-Comp Proceedings
ISSN 1759-3433 CCP: 104
PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo
Paper 157
Numerical Simulation of Explosion Scenarios in a Real Metro Station G. Valsamos, F. Casadei, G. Solomos and M. Larcher
Joint Research Centre, European Laboratory for Structural Assessment, Ispra (VA), Italy G. Valsamos, F. Casadei, G. Solomos, M. Larcher, "Numerical Simulation of Explosion Scenarios in a Real Metro Station", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 157, 2014. doi:10.4203/ccp.104.157
Keywords: explosion scenarios, finite element, fluid-structure interaction, structural failure, terrorist attack, risk analysis.
Summary
Major efforts have been devoted in recent years to enhance transport security by
detecting the vulnerabilities in the current public transportation structures, in
particular rail and metro stations, and to propose measures to improve their
resilience. The present shows a complete study of an explosion event in a real metro
station, by advanced numerical simulations. The EUROPLEXUS fast transient
dynamic finite element code has been employed for the investigation. In the
simulations, fluid structure interaction techniques in combination with blast loading
conditions are taken into account. Moreover, large deformation up to fragmentation
of the structure and its interaction with the finite element mesh is handled. A special
methodology is used in order to separate the fluid from the structural mesh and to
make them non-conforming. Concerning the outputs, emphasis has been given to the
determination of fatal and non-fatal injuries risk.
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