NDLI: Hydroelasto-plasticity approach to predicting the post-ultimate strength behavior of a ship’s hull girder in waves

Content Provider	Springer Nature Link
Author	Iijima, Kazuhiro Kimura, Kazuhiro Xu, Weijun Fujikubo, Masahiko
Copyright Year	2011
Abstract	Dynamic collapse behavior of a ship’s hull girder in waves is investigated; post-ultimate strength behavior is the focus. Firstly, a simulation method is proposed. Assuming that a plastic hinge is formed during the collapse of the hull girder, the whole ship is modeled as two rigid bodies connected amidship via a nonlinear rotational spring. The post-ultimate strength behavior, such as the reduction of load carrying capacity due to buckling and yielding, is reflected in the model. Hydrodynamic loads are evaluated by using nonlinear strip theory to account for the effect of large plastic deformations on the loads. A scaled model for validation of the simulation is designed and fabricated. Then a series of tank tests is conducted using the scaled model to validate the simulation results. Post-ultimate strength behavior characteristics in waves are clarified by using the numerical and tank test results. It is shown that the hull girder collapses rapidly after reaching ultimate strength, and then the plastic deformation grows until unloading starts at the collapsed section. Finally, several parametric dependencies of the extent of the collapse behavior are discussed based on a series of the simulations.
Starting Page	379
Ending Page	389
Page Count	11
File Format	PDF
ISSN	09484280
Journal	Journal of Marine Science and Technology
Volume Number	16
Issue Number	4
e-ISSN	14378213
Language	English
Publisher	Springer Japan
Publisher Date	2011-09-30
Publisher Place	Japan
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hull girder Post-ultimate strength behavior Hydroelasto-plasticity Scaled model Collapse Tank test Engineering Fluid Dynamics Automotive Engineering Mechanical Engineering Engineering Design Offshore Engineering
Content Type	Text
Resource Type	Article
Subject	Oceanography Ocean Engineering Mechanics of Materials Mechanical Engineering

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Hydroelasto-plasticity approach to predicting the post-ultimate strength behavior of a ship’s hull girder in waves

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Cumulative collapse of a ship hull girder under a series of extreme wave loads

Experimental evaluation of the post-ultimate strength behavior of a ship’s hull girder in waves

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