Strength assessment of an intact and damaged container ship subjected to asymmetrical bending loadings

The objective of this work is to analyse the effect of structural damage and associated neutral axis translation and rotation of the residual load carrying capacity of a container ship hull subjected to asymmetrical bending loading. The assessment is performed by a finite element analysis (FEA) and a formulation based on the Common Structural Rules (CSR). A container ship is analysed in intact and damaged conditions. The position of the neutral axis of the mid-ship section of the container ship is identified at each load step based on FEA and CSR. An update to the progressive collapse approach stipulated by CSR is proposed and compared with the finite element solution. Finally, some conclusions are presented.