Immediately following major damage to a ship from collision, grounding or weapons effects, the first concern is quite properly containing the fires and/or flooding and ensuring that the ship remains afloat, upright and stable. It is now routine practice to use onboard damage control and stability software to aid in these efforts. But what about the ship’s residual structural integrity, including hull girder strength, and proximity to further buckling or progressive collapse? The answers to these questions are not routinely available following a casualty at sea to either the ship operators or the support organization ashore. This paper presents a method using full ship finite element analysis to conduct damaged ship residual structural evaluation, and to compute operational limits to preserve structural integrity of the damaged ship in a seaway.
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