This paper presents the fatigue life assessment work on an engine exhaust valve subject to specified durability test cycles. Using valve stress (or strain) data from finite element methods, material fatigue data, and fatigue prediction models (i.e. SN approach and εN approach based on multi-axial Brown-Miller critical plane method), the valve life estimates were obtained and compared with the observed test data, which were in reasonable agreement. In addition, crack growth approach was used and valve crack propagation life including early stage growth was computed. Finally, a general discussion on three life estimates (i.e. fatigue total life, strain-life and crack growth life) was provided with their governing equation, supported by three real cases.


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    Titel :

    Fatigue Life Assessment on an Automotive Engine Exhaust Valve


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Buuck, B. (Autor:in) / Pang, M.L. (Autor:in) / Herman, R. (Autor:in) / Smith, S.P. (Autor:in)

    Kongress:

    SAE 2006 World Congress & Exhibition ; 2006



    Erscheinungsdatum :

    2006-04-03




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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    Fatigue analysis methodology for predicting engine valve life

    Roth,G. / Eaton,US | Kraftfahrwesen | 2003


    Fatigue Behavior of Exhaust Valve Alloys

    Jones, David R. | SAE Technical Papers | 1980