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    Practical Large-Deformation Finite-Element Method for 3D Geotechnical Problems Involving Free Surface Deformations

    Source: International Journal of Geomechanics:;2020:;Volume ( 020 ):;issue: 006
    Author:
    Wensong Zhang
    ,
    Mark J. Cassidy
    ,
    Yinghui Tian
    DOI: 10.1061/(ASCE)GM.1943-5622.0001648
    Publisher: ASCE
    Abstract: The remeshing and interpolation technique with small-strain (RITSS) finite-element method has been widely adopted to address a broad range of two-dimensional (2D) large deformation geotechnical problems. However, its three-dimensional (3D) applications remain extremely limited due to the requirement of user-defined coding and the challenges in accurate tracking of free surfaces. This paper introduces a recently developed 3D RITSS method to tackle geotechnical problems that involve free surface deformations with only minimal programming effort required. Both the automated mesh regeneration and the Lagrangian finite-element increments are realized using available commercial packages. The entire simulation can be controlled and executed with a single piece of Python script. The reliability of the proposed method was verified by three validation examples. A further application example modeling the reinstallation of a circular footing near an existing footprint is also presented to demonstrate the advantage of the proposed method in coping with dramatic seabed surface deformations and hence illustrates its potential application to 3D geotechnical problems.
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      Practical Large-Deformation Finite-Element Method for 3D Geotechnical Problems Involving Free Surface Deformations

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4265679
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    • International Journal of Geomechanics

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    contributor authorWensong Zhang
    contributor authorMark J. Cassidy
    contributor authorYinghui Tian
    date accessioned2022-01-30T19:37:49Z
    date available2022-01-30T19:37:49Z
    date issued2020
    identifier other%28ASCE%29GM.1943-5622.0001648.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4265679
    description abstractThe remeshing and interpolation technique with small-strain (RITSS) finite-element method has been widely adopted to address a broad range of two-dimensional (2D) large deformation geotechnical problems. However, its three-dimensional (3D) applications remain extremely limited due to the requirement of user-defined coding and the challenges in accurate tracking of free surfaces. This paper introduces a recently developed 3D RITSS method to tackle geotechnical problems that involve free surface deformations with only minimal programming effort required. Both the automated mesh regeneration and the Lagrangian finite-element increments are realized using available commercial packages. The entire simulation can be controlled and executed with a single piece of Python script. The reliability of the proposed method was verified by three validation examples. A further application example modeling the reinstallation of a circular footing near an existing footprint is also presented to demonstrate the advantage of the proposed method in coping with dramatic seabed surface deformations and hence illustrates its potential application to 3D geotechnical problems.
    publisherASCE
    titlePractical Large-Deformation Finite-Element Method for 3D Geotechnical Problems Involving Free Surface Deformations
    typeJournal Paper
    journal volume20
    journal issue6
    journal titleInternational Journal of Geomechanics
    identifier doi10.1061/(ASCE)GM.1943-5622.0001648
    page04020048
    treeInternational Journal of Geomechanics:;2020:;Volume ( 020 ):;issue: 006
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian