FINITE ELEMENT ANALYSIS ON THE SHIP HULL GIRDER UNDER LONGITUDINAL BENDING WITH BOTTOM DAMAGE

摘要

The residual hull girder strength of a bulk carrier in intact and damage condition under longitudinal bending moment isrnanalysed using FEM. The average stress-average strain relationships for stiffened and unstiffened panels are used in thernSmith’s method; those are derived by Yao et al and that given in IACS/CSR. The FEM analysis is performed using explicitrndynamic. The single hull of a bulk carrier is taken in this study to investigate the residual hull girder strength with andrnwithout bottom damage. As the fundamental case, the bottom damage is simply created of rectangular area by removingrnsome elements in the middle of the bottom part. From the results of analysis, the influence of the bottom damage on thernresidual hull girder strength is discussed including the effect of the deformation of double bottom in the damaged hold.rnThe predicted residual hull girder strengths are compared and the applicability of the Smith’s method to the hull girderrnwith bottom damage is examined.