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A methodology for comparison and assessment of three crashworthy side-shell structures: the X-core, Y-core and corrugation panel structures

Jonas Ringsberg (Institutionen för sjöfart och marin teknik, Marine Design) ; Per Hogström (Institutionen för sjöfart och marin teknik, Marine Design)
Proceedings of the Sixth International Conference on Collision and Grounding of Ships (ICCGS6) in Trondheim, Norway, June 17-19, 2013 (Editors J. Amdahl, S. Ehlers and B.J. Leira) p. 323-330. (2013)
[Konferensbidrag, refereegranskat]

Enhanced maritime safety with respect to a structure’s crashworthiness requires an innovative process which involves methodology that is reliable for its purpose and task. In numerous research projects, new innovative side-shell structures have been proposed and assessed in contrast to conventional side-shell structure designs with respect to their crashworthiness properties. The assumptions made between papers vary and also the selection of analysis method and evaluation criteria. In the current investigation, a methodology that has been verified against small and large scale structure experiments is utilised to make an in-depth comparison and assessment (by means of experiments and nonlinear finite element simulations) of three promising innovative side-shell structures referred to as the X-core, the Y-core and the intrusion-tolerant corrugated panel structures; all of them have been presented separately in the literature before. The objective is to make independent comparison of the three concepts against a typical reference double-hull side-shell structure and challenge their structural designs with respect to energy absorption, penetration depth at fracture of the inner barrier during a bulb-impact loading condition, weight and manufacturing cost. It is concluded from the inves-tigation that there is not one candidate who is superior to the others. Hence, the structures have to be further developed or trade-offs have to be made depending on the indented functionality of the structure and risk for collision related to e.g. distribution of likely collision angles.

Nyckelord: Ship collision, marine structures, crashworthiness, FE analysis, fracture



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Denna post skapades 2013-06-17. Senast ändrad 2014-12-04.
CPL Pubid: 178701

 

Institutioner (Chalmers)

Institutionen för sjöfart och marin teknik, Marine Design (2012-2014)

Ämnesområden

Materialvetenskap
Transport
Hållbar utveckling
Innovation och entreprenörskap (nyttiggörande)
Teknisk mekanik
Farkostteknik
Materialteknik

Chalmers infrastruktur