Performance assessment of the crashworthiness of corroded ship hulls
Paper i proceeding, 2017

The effects of ship-ship collision damage and progressive deterioration due to corrosion of a struck ship’s hull are studied numerically in a crashworthiness assessment. The performance of a struck ship’s hull is quantified in terms of the shape and size of the damage opening in the side-shell structure, and the division of energy absorption between the striking and struck ships. Results from finite element analyses are presented where several factors are varied in a parametric study: ship speed, collision angle, bow stiffness, material strain rate effect, friction characteristics of the outer side-shell of the struck ship, and influence from corrosion. The results show that the combined effects of a sudden collision load and corrosion lead to a damage opening size of the struck ship which is around 25% larger compared to the reference case with full corrosion margin and with non-corroded friction characteristics of the ballast water tank surface areas.

damage opening

corrosion

crashworthiness

strain rate

ship collision

Författare

Jonas Ringsberg

Chalmers, Sjöfart och marin teknik, Marin teknik

Zhiyuan Li

Chalmers, Sjöfart och marin teknik, Marin teknik

Erland Johnson

Chalmers, Sjöfart och marin teknik, Marin teknik

RISE Research Institutes of Sweden

Progress in the Analysis and Design of Marine Structures - Procceedings of The 6th International Conference on Marine Structures (MARSTRUCT 2017)

523-531

Progress in the Analysis and Design of Marine Structures - Procceedings of The 6th International Conference on Marine Structures (MARSTRUCT 2017)
Lisbon, Portugal,

Chalmers styrkeområde Transport – finansiering 2017

Chalmers, 2017-01-01 -- 2017-12-31.

Drivkrafter

Hållbar utveckling

Innovation och entreprenörskap

Ämneskategorier

Materialteknik

Beräkningsmatematik

Farkostteknik

Styrkeområden

Transport

Materialvetenskap

Fundament

Grundläggande vetenskaper

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Senast uppdaterat

2018-10-11