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    Dynamic Analysis of a Mode I Propagating Crack Subjected to a Concentrated Load

    Source: Journal of Applied Mechanics:;2018:;volume( 070 ):;issue: 005::page 668
    Author:
    Chung, Y.-L.
    ,
    Chen, M.-R.
    DOI: 10.1115/1.1600473
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: This work investigates the phenomenon of mode I central crack propagating with a constant speed subjected to a concentrated load on the crack surfaces. This problem is not a self-similar problem. However, the method of self-similar potential (SSP) in conjunction with superposition can be successfully applied if the time delay and the origin shift are considered. After the complete solution is obtained, attention is stressed on the dynamic stress intensity factors (DSIFs). Analytical results indicate that the DSIF equals the static stress intensity factor if the crack-tip speed is very slow and equal to zero if the crack-tip velocity approaches the Rayleigh-wave speed. However, the dynamic effect becomes obvious only if the crack-tip speed is 0.4 times faster than the S-wave speed. Moreover, the combination of SSP method and the superposition scheme can be applied to the expanding uniformly distributed load acting on a portion of the crack surfaces.
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      Dynamic Analysis of a Mode I Propagating Crack Subjected to a Concentrated Load

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    contributor authorChung, Y.-L.
    contributor authorChen, M.-R.
    date accessioned2019-02-28T11:13:01Z
    date available2019-02-28T11:13:01Z
    date copyright10/10/2003 12:00:00 AM
    date issued2018
    identifier issn0021-8936
    identifier other668_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4253934
    description abstractThis work investigates the phenomenon of mode I central crack propagating with a constant speed subjected to a concentrated load on the crack surfaces. This problem is not a self-similar problem. However, the method of self-similar potential (SSP) in conjunction with superposition can be successfully applied if the time delay and the origin shift are considered. After the complete solution is obtained, attention is stressed on the dynamic stress intensity factors (DSIFs). Analytical results indicate that the DSIF equals the static stress intensity factor if the crack-tip speed is very slow and equal to zero if the crack-tip velocity approaches the Rayleigh-wave speed. However, the dynamic effect becomes obvious only if the crack-tip speed is 0.4 times faster than the S-wave speed. Moreover, the combination of SSP method and the superposition scheme can be applied to the expanding uniformly distributed load acting on a portion of the crack surfaces.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleDynamic Analysis of a Mode I Propagating Crack Subjected to a Concentrated Load
    typeJournal Paper
    journal volume70
    journal issue5
    journal titleJournal of Applied Mechanics
    identifier doi10.1115/1.1600473
    journal fristpage668
    journal lastpage675
    treeJournal of Applied Mechanics:;2018:;volume( 070 ):;issue: 005
    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