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    Thermal Cycling Damage of Metal Matrix Composites: Analytical Study on Dimensional Change

    Source: Applied Mechanics Reviews:;1993:;volume( 046 ):;issue: 005::page 201
    Author:
    Minoru Taya
    ,
    William D. Armstrong
    ,
    Marty Dunn
    DOI: 10.1115/1.3120337
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: An analytical model to predict dimensional changes in thermal cycled metal matrix composites (MMCs) with and without constant stress is proposed. The present model assumes that the temperature-time relation to simulate thermal cycling is of a step-function type and the matrix metal deforms as elastic/plastic/creep material while the fiber remains elastic throughout thermal cycling. The model can explain well the experimental results of W-ThO2 /FeCr AlY composite during the early stage of cycling and those of the previous works. The present model is then compared with the existing ones including our previous model. Another model is also constructed to simulate the later stage of thermal cycling damage where the debonding of the matrix-fiber interface would presumably take place progressively with number of cycles. This model with a progressive debonded interface was found to explain reasonably well the later stage of dimensional changes observed in W-ThO2 /FeCrAlY composite. Then, the dimensional change in thermal cycled MMC under constant stress loading is studied by use of the above model for early (first) stage of thermal cycling that is modified to account for applied stress. This model can explain well the experimental results of W/Cu composite.
    keyword(s): Metal matrix composites , Stress , Composite materials , Fibers , Creep , Temperature , Metals AND Cycles ,
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      Thermal Cycling Damage of Metal Matrix Composites: Analytical Study on Dimensional Change

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/111288
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    • Applied Mechanics Reviews

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    contributor authorMinoru Taya
    contributor authorWilliam D. Armstrong
    contributor authorMarty Dunn
    date accessioned2017-05-08T23:40:16Z
    date available2017-05-08T23:40:16Z
    date copyrightMay, 1993
    date issued1993
    identifier issn0003-6900
    identifier otherAMREAD-25642#201_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/111288
    description abstractAn analytical model to predict dimensional changes in thermal cycled metal matrix composites (MMCs) with and without constant stress is proposed. The present model assumes that the temperature-time relation to simulate thermal cycling is of a step-function type and the matrix metal deforms as elastic/plastic/creep material while the fiber remains elastic throughout thermal cycling. The model can explain well the experimental results of W-ThO2 /FeCr AlY composite during the early stage of cycling and those of the previous works. The present model is then compared with the existing ones including our previous model. Another model is also constructed to simulate the later stage of thermal cycling damage where the debonding of the matrix-fiber interface would presumably take place progressively with number of cycles. This model with a progressive debonded interface was found to explain reasonably well the later stage of dimensional changes observed in W-ThO2 /FeCrAlY composite. Then, the dimensional change in thermal cycled MMC under constant stress loading is studied by use of the above model for early (first) stage of thermal cycling that is modified to account for applied stress. This model can explain well the experimental results of W/Cu composite.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleThermal Cycling Damage of Metal Matrix Composites: Analytical Study on Dimensional Change
    typeJournal Paper
    journal volume46
    journal issue5
    journal titleApplied Mechanics Reviews
    identifier doi10.1115/1.3120337
    journal fristpage201
    journal lastpage210
    identifier eissn0003-6900
    keywordsMetal matrix composites
    keywordsStress
    keywordsComposite materials
    keywordsFibers
    keywordsCreep
    keywordsTemperature
    keywordsMetals AND Cycles
    treeApplied Mechanics Reviews:;1993:;volume( 046 ):;issue: 005
    contenttypeFulltext
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