A comparison of crashworthiness methods for the assessment of ship damage extents

Herve Le Sourne, Sang Jin Kim, Ghalib Taimuri, Fabien Conti, Hongseok Bae, M.P. Mujeep Ahmed, Jean-Philippe Pineau, Thibaut Looten, Levent Kaydihan, Dracos Vassalos, Pentti Kujala, Spyros Hirdaris

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference contributionScientificvertaisarvioitu

Abstrakti

The dynamic response of ships subjected to grounding and collision accidents may be influenced by structural topology as well as operational and environmental conditions. Traditionally, the consequences of such events may be assessed by crude empirical methods or laborious experiments. Computational methods offer a useful alternative in terms of accurately capturing crushing mechanisms also accounting for the influence of surrounding water. This paper presents two benchmark studies (ship-ship collision and ship grounding) that compare the structural dynamic response simulated by explicit nonlinear FEA and super-element approaches. Special attention is attributed to breach comparison as well as dissipated energy. Simulations for typical accident scenarios involving passenger ships confirm that accounting for the effect of hydrodynamic forces in way of contact is crucial for either collision or grounding analyses. Yet, for grounding scenarios, the breach size resulting from numerical simulations appears to be particularly sensitive to the failure strain values adopted to model the rupture of the ship bottom.
AlkuperäiskieliEnglanti
OtsikkoProceedings of the 1st International Conference on the Stability and Safety of Ships and Ocean Vehicles
Sivumäärä14
TilaJulkaistu - 7 kesäk. 2021
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaInternational Conference on the Stability and Safety of Ships and Ocean Vehicles - University of Strathclyde, Glasgow, Iso-Britannia
Kesto: 7 kesäk. 202111 kesäk. 2021
Konferenssinumero: 1
http://www.stability-and-safety-2021.org/
https://stability-and-safety-2021.org/

Conference

ConferenceInternational Conference on the Stability and Safety of Ships and Ocean Vehicles
LyhennettäSTAB&S
Maa/AlueIso-Britannia
KaupunkiGlasgow
Ajanjakso07/06/202111/06/2021
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