A new hysteretic seadbed model for Riser-Soil interaction

Ehssan Zargar

    Research output: ThesisDoctoral Thesis

    450 Downloads (Pure)


    A new soil model was developed enabling more accurate modelling of riser-soil interaction. This model uses a unified mathematical approach for modelling nonlinear soil behaviour in all penetration and uplift modes. It is able to represent trench formation explicitly and capture soil degradation in consecutive load cycles. The model was coded in an in-house Fortran program as a user defined element in Abaqus software and the results were compared very well with different test data for riser soil interaction. It was also used for structural response and fatigue performance of a steel catenary riser system under cyclic loads.
    Original languageEnglish
    QualificationDoctor of Philosophy
    Awarding Institution
    • The University of Western Australia
    • Draper, Scott, Supervisor
    • Kimiaei, Mehrdad, Supervisor
    • Randolph, Mark, Supervisor
    Award date9 Oct 2017
    Publication statusUnpublished - 2017


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