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    Coupled Creep-Damage-Plasticity Model for Concrete under Long-Term Loading

    Source: Journal of Engineering Mechanics:;2020:;Volume ( 146 ):;issue: 005
    Author:
    Xiaodan Ren
    ,
    Qing Wang
    ,
    Roberto Ballarini
    ,
    Xiangling Gao
    DOI: 10.1061/(ASCE)EM.1943-7889.0001748
    Publisher: ASCE
    Abstract: A damage-plasticity model is extended to account for the effects of simultaneously occurring stiffness degradation, residual deformation, and creep. Assuming the additivity of small strains, the model combines damage mechanics, plasticity theory, and an improved version of the ACI model to characterize creep at low stress levels. The coupling between damage and creep produced by medium and high stress levels is accounted for by introducing a damage-dependent influence function. An explicit numerical algorithm is developed to implement the proposed model in the simulations of structural response. The proposed model is systematically validated by comparing its results with experimental data, suggesting that it offers promise for capturing the long-term mechanical behavior of reinforced concrete structures.
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      Coupled Creep-Damage-Plasticity Model for Concrete under Long-Term Loading

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    contributor authorXiaodan Ren
    contributor authorQing Wang
    contributor authorRoberto Ballarini
    contributor authorXiangling Gao
    date accessioned2022-01-30T19:31:41Z
    date available2022-01-30T19:31:41Z
    date issued2020
    identifier other%28ASCE%29EM.1943-7889.0001748.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4265477
    description abstractA damage-plasticity model is extended to account for the effects of simultaneously occurring stiffness degradation, residual deformation, and creep. Assuming the additivity of small strains, the model combines damage mechanics, plasticity theory, and an improved version of the ACI model to characterize creep at low stress levels. The coupling between damage and creep produced by medium and high stress levels is accounted for by introducing a damage-dependent influence function. An explicit numerical algorithm is developed to implement the proposed model in the simulations of structural response. The proposed model is systematically validated by comparing its results with experimental data, suggesting that it offers promise for capturing the long-term mechanical behavior of reinforced concrete structures.
    publisherASCE
    titleCoupled Creep-Damage-Plasticity Model for Concrete under Long-Term Loading
    typeJournal Paper
    journal volume146
    journal issue5
    journal titleJournal of Engineering Mechanics
    identifier doi10.1061/(ASCE)EM.1943-7889.0001748
    page04020027
    treeJournal of Engineering Mechanics:;2020:;Volume ( 146 ):;issue: 005
    contenttypeFulltext
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