The paper considers the design and the application of ceramic components in a high temperature gas turbine, which is being developed as an alternative for passenger-car propulsion. Silicon nitride turbine wheels were analyzed using 3-dimensional finite element methods. Calculations of temperatures and stresses were carried out for several steady-state and transient load conditions. Time dependent reliability was also computed using the theory of Weibull including subcritical crack growth. The results of these calculations are presented and discussed. The basic theory for ceramic life prediction methodology is reviewed, including the relative importance of various parameters. From the results, conclusions are derived for ceramic design. Finally some operating-experiences of ceramic turbine wheels are reported.


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    Titel :

    Structural analysis and life prediction of ceramic gas turbine components for the Mercedes-Benz research car 2000


    Weitere Titelangaben:

    Strukturanalyse und Vorhersage der Lebensdauer von Keramikteilen der Gasturbine des Mercedes-Benz Forschungsautos 2000


    Beteiligte:
    Hempel, H. (Autor:in) / Wiest, H. (Autor:in)

    Erschienen in:

    ASME-Papers ; Jun ; 1-9


    Erscheinungsdatum :

    1986


    Format / Umfang :

    , 11 Bilder, 2 Tabellen, 15 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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