Effectiveness of finite-element modelling of damage and injuries for explosions inside trains
2016 (English)In: Journal of Transportation Safety and Security, ISSN 1943-9962, Vol. 8, 83-100 p.Article in journal (Refereed) Published
The rail-bound sector has become a preferred target of terrorist attacks because of its vulnerability, and the most frequent way to carry out these attacks has been the use of explosive devices.The aim of this study is to investigate the effectiveness of modelling detonation effects inside train carriages using explicit ﬁnite element techniques. The numerical simulations consider ﬂuid-structure interaction phenomena and several parametric studies are conducted. Carriage damage and injuries to the passengers are examined. Displacements in the model of the carriage structure do not vary greatly for small changes of the charge size, its location, or by open doors. Changing charge size, the location of the detonation, and door setting however had signiﬁcant impact on the risk of eardrum rupture and fatality. Comparison of the simulation and real life data demonstrate a good agreement between the real and calculated displacements of the carriage, whereas the risk of death and eardrum rupture is slightly higher in the calculations. The model presented can reproduce a reliable actual situation if more parameters that inﬂuence injuries of blast waves were considered.
Place, publisher, year, edition, pages
Taylor & Francis Group, 2016. Vol. 8, 83-100 p.
blast wave, finite element model, rail bound, risk, security, structural damage
IdentifiersURN: urn:nbn:se:umu:diva-117258DOI: 10.1080/19439962.2015.1046619ISI: 000380366000007OAI: oai:DiVA.org:umu-117258DiVA: diva2:906761
ProjectsPreparedness for mass-casualty attacks on public transportation
FunderSwedish National Board of Health and Welfare
Supplement: 12016-02-252016-02-252016-09-13Bibliographically approved