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Residual ultimate strength assessment of submarine pressure hull under dynamic ship collision

Do Department of Naval Architecture and Ocean Engineering, Nha Trang University, 02 Nguyen Dinh Chieu, Nha Trang, 650000, Viet Nam|
Aditya Rio (57189896735) | Nguyen Dang (57953876800); Prabowo | Mai The (57197961270); Khoa Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta, 57126, Indonesia| Pham-Thanh (57954341700); Vu Faculty of Applied Sciences, International School, Vietnam National University, Hanoi, Viet Nam| Teguh (57200943067); Nhut School of Intelligent Mechatronics Engineering, Sejong University, 98 Gunja-dong, Gwangjin-gu, Seoul, 143-747, South Korea| Quang Thang (57195414388); Muttaqie Research Center for Hydrodynamics Technology, National Research and Innovation Agency, BRIN, Surabaya, 60112, Indonesia|

Ocean Engineering Số , năm 2022 (Tập 266, trang -)

ISSN: 298018

ISSN: 298018

DOI: 10.1016/j.oceaneng.2022.112951

Tài liệu thuộc danh mục:

Article

English

Từ khóa: ABAQUS; Accidents; Hulls (ship); Nonlinear equations; Numerical models; Submarines; Attendant vessel; Collision; Empirical equations; Nonlinear finite element analyses (FEA); Proposed formula; Residual ultimate strength; Ship collision; Simulation equations; Strength assessment; Submarine pressure hulls; collision; computer simulation; finite element method; hull; pressure; residual strength; submarine; Numerical methods
Tóm tắt tiếng anh
This study aims to develop numerical simulations and empirical equations to predict the ultimate residual strength of dented submarine pressure hulls. The collision scenarios considered in this study include accidents between submarine pressure hulls and attendant vessels or floating objects. First, numerical approaches were developed for dynamic collision and collapse simulations. The accuracy of the developed numerical method was validated by comparing its results with existing test results. Then, the parametric studies were conducted with a series of numerical simulations on the actual submarine pressure hull dimensions with various collision loading scenarios using ABAQUS v6.14 tools. Finally, empirical equations were established using the results from Nonlinear Finite Element Analysis (NFEA) database. The reliability of the derived equations was assessed by comparing their results with the NFEA results and the available test data. These equations are simple to use for the initial design and serviceability limit state of submarine pressure hulls subjected to collision accidents in real cases. � 2022 Elsevier Ltd

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