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    Fatigue Strength as a Function of Preloading in Dynamic Fatigue Testing of Glass and Ceramics

    Source: Journal of Engineering for Gas Turbines and Power:;1997:;volume( 119 ):;issue: 003::page 493
    Author:
    S. R. Choi
    ,
    J. P. Gyekenyesi
    DOI: 10.1115/1.2817011
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: The solution of fatigue strength as a function of preloading in dynamic fatigue (constant stress-rate) testing was obtained analytically and numerically. The effect of preloading on dynamic fatigue strength decreases with increasing fatigue parameter (n), and for n ≥ 20 the effect is negligible up to a preloading of 90 percent. The solution was verified by dynamic fatigue experiments conducted with soda-lime glass and alumina specimens in room-temperature distilled water. This result showed that one can apply a preloading corresponding up to 90 percent of fatigue strength for most glass and ceramic materials, resulting in a dramatic saving of testing time in dynamic fatigue testing. The key feature that makes this technique feasible is that most of the slow crack growth under dynamic fatigue loading occurs close to failure time where the dynamic fatigue strength is defined.
    keyword(s): Ceramics , Glass , Fatigue strength , Fatigue testing , Fatigue , Testing , Failure , Temperature , Stress , Fracture (Materials) AND Water ,
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      Fatigue Strength as a Function of Preloading in Dynamic Fatigue Testing of Glass and Ceramics

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/118639
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    • Journal of Engineering for Gas Turbines and Power

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    contributor authorS. R. Choi
    contributor authorJ. P. Gyekenyesi
    date accessioned2017-05-08T23:53:21Z
    date available2017-05-08T23:53:21Z
    date copyrightJuly, 1997
    date issued1997
    identifier issn1528-8919
    identifier otherJETPEZ-26766#493_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/118639
    description abstractThe solution of fatigue strength as a function of preloading in dynamic fatigue (constant stress-rate) testing was obtained analytically and numerically. The effect of preloading on dynamic fatigue strength decreases with increasing fatigue parameter (n), and for n ≥ 20 the effect is negligible up to a preloading of 90 percent. The solution was verified by dynamic fatigue experiments conducted with soda-lime glass and alumina specimens in room-temperature distilled water. This result showed that one can apply a preloading corresponding up to 90 percent of fatigue strength for most glass and ceramic materials, resulting in a dramatic saving of testing time in dynamic fatigue testing. The key feature that makes this technique feasible is that most of the slow crack growth under dynamic fatigue loading occurs close to failure time where the dynamic fatigue strength is defined.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleFatigue Strength as a Function of Preloading in Dynamic Fatigue Testing of Glass and Ceramics
    typeJournal Paper
    journal volume119
    journal issue3
    journal titleJournal of Engineering for Gas Turbines and Power
    identifier doi10.1115/1.2817011
    journal fristpage493
    journal lastpage499
    identifier eissn0742-4795
    keywordsCeramics
    keywordsGlass
    keywordsFatigue strength
    keywordsFatigue testing
    keywordsFatigue
    keywordsTesting
    keywordsFailure
    keywordsTemperature
    keywordsStress
    keywordsFracture (Materials) AND Water
    treeJournal of Engineering for Gas Turbines and Power:;1997:;volume( 119 ):;issue: 003
    contenttypeFulltext
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