This paper investigates the use of shakedown limit state in the assessment of longitudinal strength of ship hull girders. This consideration is related to the fact that a structural system subjected to cyclic loadings may suffer from plastic collapse even when the loading magnitude is less than the instantaneous collapse load of single excursion. This paper first evaluates the shakedown limit state of a box girder model with and without the consideration of buckling. Nonlinear finite element analyses are also performed to investigate the structural behaviours of a case study model under six different cyclic loading protocols. The rationality of a shakedown limit state is discussed and an energy-based characterisation of limit state is suggested. The study shows that, whilst the use of shakedown limit state assessment may be overly conservative, the safety margin based on an ultimate limit state approach might be considerably reduced.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A re-evaluation of the hull girder shakedown limit states


    Contributors:
    Li, Shen (author) / Benson, Simon D. (author)

    Published in:

    Ships and Offshore Structures ; 14 , sup1 ; 239-250


    Publication date :

    2019-10-03


    Size :

    12 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    A new method for assessing the shakedown limit state associated with the breakage of a ship's hull girder

    Zhang, Xiaoming / Paik, Jeom Kee / Jones, Norman | Taylor & Francis Verlag | 2016



    Hull Girder Loading

    Shama, Mohamed | Springer Verlag | 2013


    Hull Girder Bending Stresses

    Shama, Mohamed | Springer Verlag | 2013


    Development of Ultimate Hull Girder Capacity

    Andreassen, E. / Valsgaard, S. / Kim, S.-K. et al. | British Library Conference Proceedings | 1998