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    Research on the Damage Evolution Law and Dynamic Damage Constitutive Model of High-Performance Equal-Sized-Aggregate Concrete Materials

    Source: Journal of Materials in Civil Engineering:;2022:;Volume ( 034 ):;issue: 005::page 04022039
    Author:
    Yizhong Tan
    ,
    Xiaomin Shi
    ,
    Yihao Cheng
    ,
    Gan Li
    ,
    Songlin Yue
    ,
    Mingyang Wang
    ,
    Yuheng Wang
    ,
    Peiyong Wang
    ,
    Jiawu Zhou
    DOI: 10.1061/(ASCE)MT.1943-5533.0004167
    Publisher: ASCE
    Abstract: High-performance equal-sized-aggregate (HPESA) concrete materials are mainly used as wall-off filling materials for underground engineering to meet the functional requirements of explosion prevention and shock absorption. However, the promotion and application of materials in underground engineering requires further understanding of its behavior in terms of damage evolution under impact load. A dynamic damage constitutive model able to describe the characteristics of material failure and deformation is thus required. According to the optimal energy-consumption ratio parameters of HPESA concrete materials, specimens that could meet the requirements of static pressure tests and split Hopkinson bar (SHPB) impact tests were prepared. The quasi-static testing parameters at a constant strain rate of 2.0×10−5  s−1 and the dynamic stress-strain curves at strain ratios from 25 to 155  s−1 were obtained. Then, from the bulk failure characteristics of the HPESA concrete materials under uniaxial impacting compression, the damage evolution mechanism of the material during its transformation from the structural phase to the damage phase was clarified, and an exponential model describing the evolution of damage with clear physical significance was obtained. Finally, when the damage variable of the HPESA concrete material was used in the Zhu-Wang-Tang (ZWT) rate-type constitutive equation, a uniaxial dynamic damage constitutive model that could describe the response of the HPESA concrete materials was obtained. The response characteristic parameters of the theoretical model were found by nonlinear fitting, which lays a foundation for numerical analysis of this material in underground engineering scenarios.
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      Research on the Damage Evolution Law and Dynamic Damage Constitutive Model of High-Performance Equal-Sized-Aggregate Concrete Materials

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4282041
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    • Journal of Materials in Civil Engineering

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    contributor authorYizhong Tan
    contributor authorXiaomin Shi
    contributor authorYihao Cheng
    contributor authorGan Li
    contributor authorSonglin Yue
    contributor authorMingyang Wang
    contributor authorYuheng Wang
    contributor authorPeiyong Wang
    contributor authorJiawu Zhou
    date accessioned2022-05-07T20:08:41Z
    date available2022-05-07T20:08:41Z
    date issued2022-02-16
    identifier other(ASCE)MT.1943-5533.0004167.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4282041
    description abstractHigh-performance equal-sized-aggregate (HPESA) concrete materials are mainly used as wall-off filling materials for underground engineering to meet the functional requirements of explosion prevention and shock absorption. However, the promotion and application of materials in underground engineering requires further understanding of its behavior in terms of damage evolution under impact load. A dynamic damage constitutive model able to describe the characteristics of material failure and deformation is thus required. According to the optimal energy-consumption ratio parameters of HPESA concrete materials, specimens that could meet the requirements of static pressure tests and split Hopkinson bar (SHPB) impact tests were prepared. The quasi-static testing parameters at a constant strain rate of 2.0×10−5  s−1 and the dynamic stress-strain curves at strain ratios from 25 to 155  s−1 were obtained. Then, from the bulk failure characteristics of the HPESA concrete materials under uniaxial impacting compression, the damage evolution mechanism of the material during its transformation from the structural phase to the damage phase was clarified, and an exponential model describing the evolution of damage with clear physical significance was obtained. Finally, when the damage variable of the HPESA concrete material was used in the Zhu-Wang-Tang (ZWT) rate-type constitutive equation, a uniaxial dynamic damage constitutive model that could describe the response of the HPESA concrete materials was obtained. The response characteristic parameters of the theoretical model were found by nonlinear fitting, which lays a foundation for numerical analysis of this material in underground engineering scenarios.
    publisherASCE
    titleResearch on the Damage Evolution Law and Dynamic Damage Constitutive Model of High-Performance Equal-Sized-Aggregate Concrete Materials
    typeJournal Paper
    journal volume34
    journal issue5
    journal titleJournal of Materials in Civil Engineering
    identifier doi10.1061/(ASCE)MT.1943-5533.0004167
    journal fristpage04022039
    journal lastpage04022039-11
    page11
    treeJournal of Materials in Civil Engineering:;2022:;Volume ( 034 ):;issue: 005
    contenttypeFulltext
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