Two analytical methods of predicting the total fatigue life of a component such as weldment are compared: a relatively uncomplicated, two-stage, total-life-model known as the initiation-propagation or IP model; and a recently developed model termed the PICC-RICC crack growth model which integrates the effects of plasticity-induced crack closure (PICC) and roughness-induced crack closure (RICC). The PICC-RICC model is combined with estimates crack nucleation life to provide the second total life model herein termed the nucleation-propagation or NP model. The predictions of the IP and NP models are compared and found to be similar. The simpler IP model is then used to explore the potential influence of weld quality, weldment size, base metal strength, and residual stresses on the total fatigue life of weldments.


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    Titel :

    Total Fatigue Life Prediction Methods


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    SAE Earthmoving Industry Conference & Exposition ; 1998



    Erscheinungsdatum :

    08.04.1998




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Total fatigue life prediction methods

    Lawrence,F.V. / Univ.of Illinois at Urbana-Champaign,US | Kraftfahrwesen | 1998


    Total Fatigue Life Prediction Methods

    Lawrence, F. V. / SAE | British Library Conference Proceedings | 1998



    A review of fatigue life prediction methods

    Dowling,N.E. / Virginia Polytechnic Inst.and State Univ.,US | Kraftfahrwesen | 1987


    A Review of Fatigue Life Prediction Methods

    Dowling, N. E. | SAE Technical Papers | 1987