Affiliations: University of Zagreb, Faculty for Mechanical
Engineering and Naval Architecture, Department for Naval Architecture and Ocean
Engineering, Zagreb, Croatia
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.
Keywords: ship, ship construction, strength of ship, longitudinal strength, theory of plasticity, load-end shortening method, ship's survival ability, residual strength, ultimate strength, buckling strength, collision, tanker, bulk carrier
