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    Castigliano’s Second Theorem for Deformation Determination of a Cracked Body

    Source: Journal of Aerospace Engineering:;2015:;Volume ( 028 ):;issue: 005
    Author:
    Yinfeng Li
    ,
    Zhonghua Li
    ,
    Pizhong Qiao
    DOI: 10.1061/(ASCE)AS.1943-5525.0000475
    Publisher: American Society of Civil Engineers
    Abstract: In this paper, a continuum theory capable of describing the deformation of a cracked body based on Castigliano’s second theorem is presented. The additional deformation due to the crack presence is described by the concept of stress intensity factor (SIF) of linear elastic fracture mechanics. Both the crack opening distance and the body deformation can be easily computed for any arbitrary loading on any boundary. As a demonstration, the proposed theory is applied to cases of edge-cracked infinite plane and edge-cracked beam, and the results show high accuracy when compared to those predicted by the numerical finite-element method.
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      Castigliano’s Second Theorem for Deformation Determination of a Cracked Body

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    contributor authorYinfeng Li
    contributor authorZhonghua Li
    contributor authorPizhong Qiao
    date accessioned2017-12-16T09:22:52Z
    date available2017-12-16T09:22:52Z
    date issued2015
    identifier other%28ASCE%29AS.1943-5525.0000475.pdf
    identifier urihttp://138.201.223.254:8080/yetl1/handle/yetl/4242133
    description abstractIn this paper, a continuum theory capable of describing the deformation of a cracked body based on Castigliano’s second theorem is presented. The additional deformation due to the crack presence is described by the concept of stress intensity factor (SIF) of linear elastic fracture mechanics. Both the crack opening distance and the body deformation can be easily computed for any arbitrary loading on any boundary. As a demonstration, the proposed theory is applied to cases of edge-cracked infinite plane and edge-cracked beam, and the results show high accuracy when compared to those predicted by the numerical finite-element method.
    publisherAmerican Society of Civil Engineers
    titleCastigliano’s Second Theorem for Deformation Determination of a Cracked Body
    typeJournal Paper
    journal volume28
    journal issue5
    journal titleJournal of Aerospace Engineering
    identifier doi10.1061/(ASCE)AS.1943-5525.0000475
    treeJournal of Aerospace Engineering:;2015:;Volume ( 028 ):;issue: 005
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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