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      PRESSURE-IMPULSE DIAGRAM OF THE FLNG TANKS UNDER SLOSHING LOADS

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      International Journal of Maritime Engineering
      University of Buckingham Press

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          Abstract

          Sloshing impact loads can cause severe structural damage to cargo tanks in liquefied natural gas floating production storage offloading units (LNG-FPSOs or FLNGs). Studies of sloshing can be classified into two types, namely, hydrodynamics-related and structural mechanics-related studies. This study is a sequel to the authors’ previous studies (Paik et al. 2015; Lee et al. 2015), but is more related to issues of structural mechanics. In this study, a new method for probabilistic sloshing assessment, which has been previously developed by the authors, is briefly explained. The nonlinear impact structural response characteristics under sloshing impact loads are examined by a nonlinear finite element ANSYS/LS-DYNA method. An iso-damage curve, representing a pressure-impulse diagram, is derived for the self-supporting prismatic-shape IMO B type LNG cargo containment system of a hypothetical FLNG. The insights developed from this work can be useful for the damage-tolerant design of cargo tanks in FLNGs.

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          Author and article information

          Journal
          International Journal of Maritime Engineering
          IJME
          University of Buckingham Press
          1479-8751
          1479-8751
          December 13 2021
          December 13 2021
          : 160
          : A2
          Article
          10.5750/ijme.v160iA2.1051
          bde95e72-8f71-47ae-8d8b-e15278a1f265
          © 2021
          History

          General engineering,Engineering,Civil engineering,Mechanical engineering
          General engineering, Engineering, Civil engineering, Mechanical engineering

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