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

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

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.
Original languageEnglish
Title of host publicationProceedings of the 1st International Conference on the Stability and Safety of Ships and Ocean Vehicles
Number of pages14
Publication statusAccepted/In press - 7 Jun 2021
MoE publication typeA4 Article in a conference publication
EventInternational Conference on the Stability and Safety of Ships and Ocean Vehicles - University of Strathclyde, Glasgow, United Kingdom
Duration: 7 Jun 202111 Jun 2021
Conference number: 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
Abbreviated titleSTAB&S
Country/TerritoryUnited Kingdom
CityGlasgow
Period07/06/202111/06/2021
Internet address

Keywords

  • Ship collisions
  • Ship groundings
  • FEA
  • FSI
  • Dynamic response
  • Super-element method
  • Ship safety

Field of art

  • Design

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