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Structural Survivability of a Modern Passenger Ship

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This paper presents the results of an investigation into the structural survivability of a modern cruise liner in the flooded condition after collision damage. In the intact condition, these ships are typically loaded in a hogged condition, where the upper decks are in tension and the bottom and lower hull are in compression. In the case of a potential midship flooding casualty following a collision, the weight of the flooding water could put the ship in a sagged condition with the upper decks in compression. The capability of these ships to withstand this type of loading, after sustaining structural damage that would likely occur simultaneously, is unknown. The structural survivability in the combined worst-case intact loading, flooding loading, and wave loading, considering the ultimate collapse strength of the ship with structural damage, is assessed. This analysis confirms that this ship should have adequate residual ultimate strength to withstand the loading for this worst-case scenario. This conclusion is believed to be generally applicable to a wide range of ship types and sizes primarily due to the margin between the intact design wave loading criteria as compared to the moderate wave loading expected during collision damage and flooding scenarios.
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Document Type: Research Article

Publication date: 2004-01-01

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  • Marine Technology is dedicated to James Kennedy, 1867-1936, marine engineer, and longtime member of the Society, in recognition and appreciation of his sincere and generous interest in furthering the art of ship design, shipbuilding, ship operation, and related activities.

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