<p>Rapid increase of the loading capacity of container ships is always accompanied by the large increase of the width and deck-open degree of the ship hull girder. Consequently, more and more attentions should be paid to the effect of both the horizontal bending and torsion on hull girder’s ultimate strength. It has also been proved that, due to warping effect, for the collapse behaviors of the hull girder subjected to combined vertical bending and torsion, there exist large differences between the global hull girder (i.e., the full-length model) and the compartment hull girder (e.g., 1/2+1+1/2 compartment model). The objective of this research is to more completely figure out the picture of the loading capacity of the 10,000TEU container ship’s global hull girder subjected to load combinations, quantitatively developing an ultimate strength envelope of the global hull girder of the chosen container ship and understanding the global hull girder’s ultimate strength interactions between vertical bending, horizontal bending and torsion. To accomplish this aim, the global hull girder of the chosen container ship is numerically modeled based on the configurations of the chosen container ship. With this established global hull girder model, a series of large deflection and elastoplastic nonlinear finite element analyses are conducted to obtain the ultimate strength envelope of the chosen container ship’s global hull girder subjected to combined vertical bending, horizontal bending and torsion. The established ultimate strength envelope can be referred as one of the most important indexes to measure the safety performance of the container ship’s global hull girder under the most extreme loading conditions.</p>

Ultimate Strength Envelope of a 10,000teu Container Ship’s Global Hull Girder Subjected to Combined Vertical Bending, Horizontal Bending and Torsion

Paper Proceedings: https://asmedigitalcollection.asme.org/OMAE/OMAE2021/volume/85116

OMAE 2021

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