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

Content Provider	Springer Nature Link
Author	Iijima, Kazuhiro Fujikubo, Masahiko
Copyright Year	2015
Abstract	This paper addresses the cumulative collapse behavior of a ship hull girder under a series of extreme wave loads. It is a follow-up of the previous work done by the present authors. In the previous work, the post-ultimate strength behavior under a single extreme wave was investigated by using numerical simulations and tank tests. The reduction in the vertical bending moment after reaching the ultimate strength was not reproduced in the scaled model. In the present work, a more realistic hull girder capacity model is employed. We introduce a new type of model whose hull girder bending moment capacity decreases after its ultimate strength. A series of the focused waves with the same time history are generated and applied to the scaled model in the tank tests. It is observed that the still-water bending moment decreases with the development of the plastic deformations. The development rate of collapse per one focused wave becomes smaller under a series of focused waves if the reduction rate of the still-water bending moment is larger than the reduction rate of the bending moment capacity after the ultimate strength.
Starting Page	530
Ending Page	541
Page Count	12
File Format	PDF
ISSN	09484280
Journal	Journal of Marine Science and Technology
Volume Number	20
Issue Number	3
e-ISSN	14378213
Language	English
Publisher	Springer Japan
Publisher Date	2015-02-11
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hull girder Post-ultimate strength behavior Cumulative collapse Extreme wave Still-water bending moment Automotive Engineering Engineering Fluid Dynamics Engineering Design Offshore Engineering Mechanical Engineering
Content Type	Text
Resource Type	Article
Subject	Oceanography Ocean Engineering Mechanics of Materials Mechanical Engineering

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