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    Prediction of Failure Behavior for Nuclear Piping Using Curved Wide-Plate Test

    Source: Journal of Pressure Vessel Technology:;2004:;volume( 126 ):;issue: 004::page 419
    Author:
    Nam-Su Huh
    ,
    Yun-Jae Kim
    ,
    Jae-Boong Choi
    ,
    Chang-Ryul Pyo
    ,
    Young-Jin Kim
    DOI: 10.1115/1.1806447
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: One important element of the Leak-Before-Break analysis of nuclear piping is how to determine relevant fracture toughness (or the J-resistance curve) for nonlinear fracture mechanics analysis. The practice to use fracture toughness from a standard C(T) specimen is known to often give conservative estimates of toughness. To improve the accuracy of predicting piping failure, this paper proposes a new method to determine fracture toughness using a nonstandard testing specimen, curved wide-plate in tension. To show validity of the proposed curved wide-plate test, the J-resistance curve from the full-scale pipe test is compared with that from the curved wide-plate test and that from C(T) specimen. It is shown that the J-resistance curve from the curved wide-plate tension test is similar to, but that from the C(T) specimen is lower than, the J-resistance curve from the full-scale pipe test. Further validation is performed by investigating crack-tip constraint conditions via detailed three-dimensional finite element analyses, which shows that the crack-tip constraint condition in the curved wide-plate tension specimen is indeed similar to that in the full-scale pipe under bending.
    keyword(s): Fracture (Materials) , Finite element analysis , Pipes , Electrical resistance , Failure , Fracture toughness , Testing AND Stress ,
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      Prediction of Failure Behavior for Nuclear Piping Using Curved Wide-Plate Test

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    contributor authorNam-Su Huh
    contributor authorYun-Jae Kim
    contributor authorJae-Boong Choi
    contributor authorChang-Ryul Pyo
    contributor authorYoung-Jin Kim
    date accessioned2017-05-09T00:14:06Z
    date available2017-05-09T00:14:06Z
    date copyrightNovember, 2004
    date issued2004
    identifier issn0094-9930
    identifier otherJPVTAS-28446#419_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/130651
    description abstractOne important element of the Leak-Before-Break analysis of nuclear piping is how to determine relevant fracture toughness (or the J-resistance curve) for nonlinear fracture mechanics analysis. The practice to use fracture toughness from a standard C(T) specimen is known to often give conservative estimates of toughness. To improve the accuracy of predicting piping failure, this paper proposes a new method to determine fracture toughness using a nonstandard testing specimen, curved wide-plate in tension. To show validity of the proposed curved wide-plate test, the J-resistance curve from the full-scale pipe test is compared with that from the curved wide-plate test and that from C(T) specimen. It is shown that the J-resistance curve from the curved wide-plate tension test is similar to, but that from the C(T) specimen is lower than, the J-resistance curve from the full-scale pipe test. Further validation is performed by investigating crack-tip constraint conditions via detailed three-dimensional finite element analyses, which shows that the crack-tip constraint condition in the curved wide-plate tension specimen is indeed similar to that in the full-scale pipe under bending.
    publisherThe American Society of Mechanical Engineers (ASME)
    titlePrediction of Failure Behavior for Nuclear Piping Using Curved Wide-Plate Test
    typeJournal Paper
    journal volume126
    journal issue4
    journal titleJournal of Pressure Vessel Technology
    identifier doi10.1115/1.1806447
    journal fristpage419
    journal lastpage425
    identifier eissn1528-8978
    keywordsFracture (Materials)
    keywordsFinite element analysis
    keywordsPipes
    keywordsElectrical resistance
    keywordsFailure
    keywordsFracture toughness
    keywordsTesting AND Stress
    treeJournal of Pressure Vessel Technology:;2004:;volume( 126 ):;issue: 004
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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