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《Journal of Vibration and Shock》 2015-16
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Analytical model of bottom plate torn by a cone-shape rock during ship grounding accident

ZENG Jia;HU Zhi-qiang;CHEN Gang;State Key Laboratory of Ocean Engineering;Marine Design and Research Institute of China;State Key Laboratory of Structural Analysis for Industrial Equipment;  
A theoretical method for plate tearing by a rigid cone was developed. The studied model is an idealization of ship grounding damage. The observed mode of deformation was idealized as a simplified kinematical admissible deformation mode,and the rate of internal energy dissipation in friction,stretching,bending and fracture was quantified accordingly by analytical expressions. Based on the upper-bound theorem,the plate tearing resisting force in the moving direction of the cone was calculated by the proposed analytical formula. The analytical results were compared with a series of Muscat-Fenech experimental results,and they agree reasonably well. The non-linear finite element program LS_ DYNA was used to simulate several grounding scenarios of a typical ship double bottom structure running aground on a cone-shape rock. By adopting equivalent plate thickness,the analytical method proposed was verified by the simulation results. The analytical calculation formula obtained can be used to calculate and assess the crashworthiness of a ship during its design phase.
【Fund】: 国家自然科学基金重点项目(51239007)
【CateGory Index】: U661.4
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【Citations】
Chinese Journal Full-text Database 2 Hits
1 YU Zhao-long;HU Zhi-qiang;WANG Ge;State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University;State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology;ABS Greater China Division;;COLLAPSE MECHANISM ANALYSIS OF STIFFENERS ON THE OUTER BOTTOM PLATE IN A SHOAL GROUNDING ACCIDENT[J];工程力学;2014-09
2 YU Zhao-long;HU Zhi-qiang;WANG Ge;JIANG Zhe;State Key Lab of Ocean Engineering,Shanghai Jiaotong University;State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology;American Bureau of Shipping;CNOOC Research Institute;;Collapse mechanism of longitudinal web girder attached stiffeners in a shoal grounding scenario of a double bottom tanker[J];振动与冲击;2014-03
【Co-citations】
Chinese Journal Full-text Database 2 Hits
1 ZENG Jia;HU Zhi-qiang;CHEN Gang;State Key Laboratory of Ocean Engineering;Marine Design and Research Institute of China;State Key Laboratory of Structural Analysis for Industrial Equipment;;Analytical model of bottom plate torn by a cone-shape rock during ship grounding accident[J];振动与冲击;2015-16
2 GAO Zhen-guo;HU Zhi-qiang;State Key Lab of Ocean Engineering,Shanghai Jiao Tong University;State Key Lab of Structural Analysis for Industrial Equipment,Dalian University of Technology;;Structural deformation mechanism analysis of web girders during ship collision and grounding accidents[J];振动与冲击;2015-08
【Secondary Citations】
Chinese Journal Full-text Database 1 Hits
1 LIU Yi,WANG Jin,HU Zhi-qiang(State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China);INVESTIGATION ON SMEARED THICKNESS METHOD FOR SHIP GROUNDING OVER OBSTACLES WITH LARGE CONTACT SURFACE AND TRAPEZOIDAL CROSS-SECTION[J];工程力学;2013-08
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