YaBeSH Engineering and Technology Library

    • Journals
    • PaperQuest
    • YSE Standards
    • YaBeSH
    • Login
    View Item 
    •   YE&T Library
    • ASCE
    • Journal of Engineering Mechanics
    • View Item
    •   YE&T Library
    • ASCE
    • Journal of Engineering Mechanics
    • View Item
    • All Fields
    • Source Title
    • Year
    • Publisher
    • Title
    • Subject
    • Author
    • DOI
    • ISBN
    Advanced Search
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Archive

    Numerical Method for Lower-Bound Solution of the Rigid-Plastic Limit Analysis Problem

    Source: Journal of Engineering Mechanics:;2001:;Volume ( 127 ):;issue: 011
    Author:
    C. K. Soh
    ,
    T. K. Chan
    ,
    S. K. Yu
    DOI: 10.1061/(ASCE)0733-9399(2001)127:11(1075)
    Publisher: American Society of Civil Engineers
    Abstract: This paper describes a numerical method to determine the lower-bound solution of limit load of a rigid–perfectly plastic body obeying the von Mises yield criterion. The idea of this method is to construct a smoothed linear stress field that satisfies the yield criterion everywhere in the body. Applying the similar stress recovery techniques as superconvergent patch recovery and recovery by equilibrium in patch in the elastic finite-element analysis, the nodal stresses are obtained from those stresses at the integration points from an iterative process of upper-bound limit analysis. Then, the improved stress fields and lower-bound solutions can be derived by ensuring all the nodal stresses within the yield surface. The convergence of this method is guaranteed. The validity of the proposed method is demonstrated with some numerical examples. The computational results show that more reliable lower-bound solutions can be obtained by using this method, especially for problems with strain singularity.
    • Download: (115.9Kb)
    • Show Full MetaData Hide Full MetaData
    • Get RIS
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      Numerical Method for Lower-Bound Solution of the Rigid-Plastic Limit Analysis Problem

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/85294
    Collections
    • Journal of Engineering Mechanics

    Show full item record

    contributor authorC. K. Soh
    contributor authorT. K. Chan
    contributor authorS. K. Yu
    date accessioned2017-05-08T22:39:25Z
    date available2017-05-08T22:39:25Z
    date copyrightNovember 2001
    date issued2001
    identifier other%28asce%290733-9399%282001%29127%3A11%281075%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/85294
    description abstractThis paper describes a numerical method to determine the lower-bound solution of limit load of a rigid–perfectly plastic body obeying the von Mises yield criterion. The idea of this method is to construct a smoothed linear stress field that satisfies the yield criterion everywhere in the body. Applying the similar stress recovery techniques as superconvergent patch recovery and recovery by equilibrium in patch in the elastic finite-element analysis, the nodal stresses are obtained from those stresses at the integration points from an iterative process of upper-bound limit analysis. Then, the improved stress fields and lower-bound solutions can be derived by ensuring all the nodal stresses within the yield surface. The convergence of this method is guaranteed. The validity of the proposed method is demonstrated with some numerical examples. The computational results show that more reliable lower-bound solutions can be obtained by using this method, especially for problems with strain singularity.
    publisherAmerican Society of Civil Engineers
    titleNumerical Method for Lower-Bound Solution of the Rigid-Plastic Limit Analysis Problem
    typeJournal Paper
    journal volume127
    journal issue11
    journal titleJournal of Engineering Mechanics
    identifier doi10.1061/(ASCE)0733-9399(2001)127:11(1075)
    treeJournal of Engineering Mechanics:;2001:;Volume ( 127 ):;issue: 011
    contenttypeFulltext
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian
     
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian