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    Proposal of a Nonlinear Spring Model on Piping Support Structures for an Elastoplastic Response Analysis Method

    Source: Journal of Pressure Vessel Technology:;2024:;volume( 146 ):;issue: 006::page 61301-1
    Author:
    Takito, Kiyotaka
    ,
    Okuda, Yukihiko
    ,
    Nishida, Akemi
    ,
    Li, Yinsheng
    DOI: 10.1115/1.4066278
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: In probabilistic risk assessment against earthquakes for nuclear power plants, developing a realistic response analysis method for the fragility assessment of piping systems considering input seismic motions exceeding the design assumptions is important. Piping systems typically exhibit complex three-dimensional shapes, and the arrangement and stiffness of the piping support structures significantly affect the response characteristics of the entire piping system. Therefore, developing a realistic response analysis method for piping systems, including support structures is necessary. In this study, a method is proposed for modeling the elastoplastic hysteresis characteristics of piping support structures to establish a seismic response analysis method for piping systems, including support structures. First, the authors propose an elastoplastic spring model that can express the elastoplastic hysteresis characteristics of a piping support structure. Subsequently, using this model, the authors perform a simulation analysis for the loading test of a piping support structure. The analysis and test results correlated well, confirming the effectiveness of the proposal of the model. The main contents, including the proposal of the elastoplastic spring model, the simulation analysis of the loading test, and the comparison between the analysis solutions and the test results, are reported in this paper.
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      Proposal of a Nonlinear Spring Model on Piping Support Structures for an Elastoplastic Response Analysis Method

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    contributor authorTakito, Kiyotaka
    contributor authorOkuda, Yukihiko
    contributor authorNishida, Akemi
    contributor authorLi, Yinsheng
    date accessioned2025-04-21T10:39:31Z
    date available2025-04-21T10:39:31Z
    date copyright9/21/2024 12:00:00 AM
    date issued2024
    identifier issn0094-9930
    identifier otherpvt_146_06_061301.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4306638
    description abstractIn probabilistic risk assessment against earthquakes for nuclear power plants, developing a realistic response analysis method for the fragility assessment of piping systems considering input seismic motions exceeding the design assumptions is important. Piping systems typically exhibit complex three-dimensional shapes, and the arrangement and stiffness of the piping support structures significantly affect the response characteristics of the entire piping system. Therefore, developing a realistic response analysis method for piping systems, including support structures is necessary. In this study, a method is proposed for modeling the elastoplastic hysteresis characteristics of piping support structures to establish a seismic response analysis method for piping systems, including support structures. First, the authors propose an elastoplastic spring model that can express the elastoplastic hysteresis characteristics of a piping support structure. Subsequently, using this model, the authors perform a simulation analysis for the loading test of a piping support structure. The analysis and test results correlated well, confirming the effectiveness of the proposal of the model. The main contents, including the proposal of the elastoplastic spring model, the simulation analysis of the loading test, and the comparison between the analysis solutions and the test results, are reported in this paper.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleProposal of a Nonlinear Spring Model on Piping Support Structures for an Elastoplastic Response Analysis Method
    typeJournal Paper
    journal volume146
    journal issue6
    journal titleJournal of Pressure Vessel Technology
    identifier doi10.1115/1.4066278
    journal fristpage61301-1
    journal lastpage61301-12
    page12
    treeJournal of Pressure Vessel Technology:;2024:;volume( 146 ):;issue: 006
    contenttypeFulltext
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    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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