Abstract
This technical note suggests the use of constant, residual strength contours of a damaged hull girder section to enhance assessment of a ship's survival ability when exposed to longitudinal vertical bending after an accident. Following a general discussion on a ship's hull girder longitudinal load carrying capacity based on elasticity theory, on fully plastic resistance moment theory and on ultimate bending moment approach, the investigation focuses on the effects of different damage modes of a hull section on the residual longitudinal strength of an impaired ship. The practical application of the computational link between the residual strength contours and a ship's survival is further clarified in given examples.
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