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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

Full Bibliographic Reference for this paper
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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