Abstract
The ultimate longitudinal strength of hull girder is, in usual, analyzed for the cross-section where the maximum longitudinal bending moment occurs. In this case, the effect of shear stress is not considered, since the shear force is zero at this cross-section. There exists, however, the cross-section having large bending moment together with large shear force for example in case of an alternate loading condition of bulk carriers. For these cases the ultimate hull girder strength analysis taking the effect of shear force is expected. This paper introduces, at first, the method to calculate the shear stress distribution and warping deformation of the hull girder cross-section loaded by shear force. Using this result, the progressive collapse analysis by "HULLST" was carried out to estimate the ultimate longitudinal strength of hull girder cross section taking the effect of shear force into consideration.
