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    Fatigue Damage of Aluminum Alloy Spot-Welded Joint Based on Defects Reconstruction

    Source: Journal of Engineering Materials and Technology:;2020:;volume( 142 ):;issue: 002::page 021001-1
    Author:
    Xu, Sha
    ,
    Chen, Hao
    ,
    Yang, Yali
    ,
    Gao, Kun
    DOI: 10.1115/1.4045092
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Three-dimensional (3D) reconstruction and finite element method are combined to study the damage behavior of aluminum alloy resistance spot-welded joints. Fatigue damage of spot-welded joints under different cyclic loading stages was obtained by X-ray microcomputed tomography (X-ray micro CT). Then, avizo software was used to reconstruct the scanned data of joints with different damage degrees, and the distribution and variation of defects in the joints are obtained. On this basis, 3D finite element damage models were established. Finite element calculations were carried out to analyze the fatigue damage of spot-welded joints by adopting the effective elastic modulus as the damage parameter. The results show that the effective elastic modulus is consistent with the experimental results. The method of combining 3D reconstruction with the finite element method can be used to evaluate the internal damage of spot-welded joints and provide theoretical basis for the prediction of fatigue life.
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      Fatigue Damage of Aluminum Alloy Spot-Welded Joint Based on Defects Reconstruction

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4275534
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    • Journal of Engineering Materials and Technology

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    contributor authorXu, Sha
    contributor authorChen, Hao
    contributor authorYang, Yali
    contributor authorGao, Kun
    date accessioned2022-02-04T22:50:09Z
    date available2022-02-04T22:50:09Z
    date copyright4/1/2020 12:00:00 AM
    date issued2020
    identifier issn0094-4289
    identifier othermats_142_2_021001.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4275534
    description abstractThree-dimensional (3D) reconstruction and finite element method are combined to study the damage behavior of aluminum alloy resistance spot-welded joints. Fatigue damage of spot-welded joints under different cyclic loading stages was obtained by X-ray microcomputed tomography (X-ray micro CT). Then, avizo software was used to reconstruct the scanned data of joints with different damage degrees, and the distribution and variation of defects in the joints are obtained. On this basis, 3D finite element damage models were established. Finite element calculations were carried out to analyze the fatigue damage of spot-welded joints by adopting the effective elastic modulus as the damage parameter. The results show that the effective elastic modulus is consistent with the experimental results. The method of combining 3D reconstruction with the finite element method can be used to evaluate the internal damage of spot-welded joints and provide theoretical basis for the prediction of fatigue life.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleFatigue Damage of Aluminum Alloy Spot-Welded Joint Based on Defects Reconstruction
    typeJournal Paper
    journal volume142
    journal issue2
    journal titleJournal of Engineering Materials and Technology
    identifier doi10.1115/1.4045092
    journal fristpage021001-1
    journal lastpage021001-6
    page6
    treeJournal of Engineering Materials and Technology:;2020:;volume( 142 ):;issue: 002
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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