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    Constraint Effect and Crack-Tip Plastic Zone of the Pipe With Internal Inclined Surface Cracks Under External Pressure

    Source: Journal of Pressure Vessel Technology:;2025:;volume( 147 ):;issue: 002::page 21306-1
    Author:
    Pei, Qi
    ,
    Yao, Xi-Ming
    ,
    Jin, Li-Zhu
    ,
    Zhou, Chang-Yu
    DOI: 10.1115/1.4067676
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: To improve the accuracy of reliability assessment, it is essential to conduct a comprehensive investigation into the constraint effect and the characteristics of the crack-tip plastic zone in a pipe with internal inclined surface cracks. We propose a novel analytical solution for the crack-tip plastic zone in a mixed mode I–II–III crack, based on the von Mises yield criterion, which includes stress intensity factors (SIFs) KII and KIII. We have examined the impact of several factors, including aspect ratio (a/c), crack depth (a/t), crack inclination angle (β), and friction coefficient (μ), on the in-plane constraint (T11), out-of-plane constraint (T33 and Tz), as well as the unified constraint (h) of a pipe containing internal inclined surface cracks under external pressure. The research reveals that geometrical configurations (aspect ratio and crack depth) have varying effects on the four constraint parameters, depending on their location along the crack front. The influence is relatively minor at the crack surface and the deepest point but becomes most pronounced at the middle point of the crack front. Additionally, the friction factor exclusively impacts the unified constraint parameter. Furthermore, we observed that the crack-tip plastic zone displays a mixed mode II–III crack at the free surface and a pure III mode at the deepest point.
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      Constraint Effect and Crack-Tip Plastic Zone of the Pipe With Internal Inclined Surface Cracks Under External Pressure

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    contributor authorPei, Qi
    contributor authorYao, Xi-Ming
    contributor authorJin, Li-Zhu
    contributor authorZhou, Chang-Yu
    date accessioned2025-04-21T10:04:04Z
    date available2025-04-21T10:04:04Z
    date copyright2/7/2025 12:00:00 AM
    date issued2025
    identifier issn0094-9930
    identifier otherpvt_147_02_021306.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4305419
    description abstractTo improve the accuracy of reliability assessment, it is essential to conduct a comprehensive investigation into the constraint effect and the characteristics of the crack-tip plastic zone in a pipe with internal inclined surface cracks. We propose a novel analytical solution for the crack-tip plastic zone in a mixed mode I–II–III crack, based on the von Mises yield criterion, which includes stress intensity factors (SIFs) KII and KIII. We have examined the impact of several factors, including aspect ratio (a/c), crack depth (a/t), crack inclination angle (β), and friction coefficient (μ), on the in-plane constraint (T11), out-of-plane constraint (T33 and Tz), as well as the unified constraint (h) of a pipe containing internal inclined surface cracks under external pressure. The research reveals that geometrical configurations (aspect ratio and crack depth) have varying effects on the four constraint parameters, depending on their location along the crack front. The influence is relatively minor at the crack surface and the deepest point but becomes most pronounced at the middle point of the crack front. Additionally, the friction factor exclusively impacts the unified constraint parameter. Furthermore, we observed that the crack-tip plastic zone displays a mixed mode II–III crack at the free surface and a pure III mode at the deepest point.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleConstraint Effect and Crack-Tip Plastic Zone of the Pipe With Internal Inclined Surface Cracks Under External Pressure
    typeJournal Paper
    journal volume147
    journal issue2
    journal titleJournal of Pressure Vessel Technology
    identifier doi10.1115/1.4067676
    journal fristpage21306-1
    journal lastpage21306-14
    page14
    treeJournal of Pressure Vessel Technology:;2025:;volume( 147 ):;issue: 002
    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
    yabeshDSpacePersian