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    Finite element simulations on erosion and crack propagation in thermal barrier coatings

    Access Status
    Fulltext not available
    Authors
    Ma, Z.
    Fu, L.
    Yang, L.
    Zhou, Y.
    Lu, Chunsheng
    Date
    2014
    Type
    Journal Article
    
    Metadata
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    Citation
    Ma, Z. and Fu, L. and Yang, L. and Zhou, Y. and Lu, C. 2014. Finite element simulations on erosion and crack propagation in thermal barrier coatings. High Temperature Materials and Processes. 34 (4): pp. 387–393.
    Source Title
    High Temperature Materials and Processes
    DOI
    10.1515/htmp-2014-0068
    ISSN
    03346455
    School
    Department of Mechanical Engineering
    URI
    http://hdl.handle.net/20.500.11937/40991
    Collection
    • Curtin Research Publications
    Abstract

    Erosion of thermal barrier coatings occurs when atmospheric or carbon particles from the combustion chamber are ingested into aviation turbine engines. To understand the influence of erosion on the service life of thermal barrier coatings, we introduce the erosion and crack propagation models, and then by using finite element simulations, determine the relationship between the penetrating depth, the maximum principle stress and impingement variables such as velocity and angle. It is shown that cracks nucleate and extend during the erosion process and the length of a crack increases with the increase of the particle velocity and impact angle.

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