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    Asperity Excited Temperature Field in a Coated Medium With a Random Uniform Coating Thickness

    Source: Journal of Tribology:;1989:;volume( 111 ):;issue: 001::page 129
    Author:
    Jew-Chyi Liu
    ,
    F. D. Ju
    DOI: 10.1115/1.3261862
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: The present paper investigates the random temperature response of a coated medium subjected to a fast moving asperity, taking into consideration the randomness of coating thickness. While the coating thickness is uniform for individual specimens, there is a small random variation from one specimen to another in a statistical space. Stochastic responses in coated solid media are investigated by the perturbation method, and the results are presented in terms of the mean value and the standard deviation of the temperature field. The numerical example considers a typical stochastic process. It is noted that even for very small thickness variation, for instances, the coefficient of the variation of coating thickness is 0.1 percent, the temperature at the interface for a thin coating can vary by a coefficient of variation of 18 percent.
    keyword(s): Temperature , Coating processes , Coatings , Thickness AND Stochastic processes ,
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      Asperity Excited Temperature Field in a Coated Medium With a Random Uniform Coating Thickness

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/106110
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    contributor authorJew-Chyi Liu
    contributor authorF. D. Ju
    date accessioned2017-05-08T23:31:16Z
    date available2017-05-08T23:31:16Z
    date copyrightJanuary, 1989
    date issued1989
    identifier issn0742-4787
    identifier otherJOTRE9-28474#129_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/106110
    description abstractThe present paper investigates the random temperature response of a coated medium subjected to a fast moving asperity, taking into consideration the randomness of coating thickness. While the coating thickness is uniform for individual specimens, there is a small random variation from one specimen to another in a statistical space. Stochastic responses in coated solid media are investigated by the perturbation method, and the results are presented in terms of the mean value and the standard deviation of the temperature field. The numerical example considers a typical stochastic process. It is noted that even for very small thickness variation, for instances, the coefficient of the variation of coating thickness is 0.1 percent, the temperature at the interface for a thin coating can vary by a coefficient of variation of 18 percent.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleAsperity Excited Temperature Field in a Coated Medium With a Random Uniform Coating Thickness
    typeJournal Paper
    journal volume111
    journal issue1
    journal titleJournal of Tribology
    identifier doi10.1115/1.3261862
    journal fristpage129
    journal lastpage135
    identifier eissn1528-8897
    keywordsTemperature
    keywordsCoating processes
    keywordsCoatings
    keywordsThickness AND Stochastic processes
    treeJournal of Tribology:;1989:;volume( 111 ):;issue: 001
    contenttypeFulltext
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