A unified ductility criterion for fatigue–creep life prediction is presented based on the static fracture toughness exhaustion and dissipated cyclic strain energy density of high temperature components. It provides a general failure criterion for both low and high cycle fatigue regimes. The effects of mean stress, creep and loading waveform on fatigue life are incorporated into this criterion. Applicability and prediction accuracy of the newly proposed criterion was validated through comparing model predictions to experimental results taken from the literature. The results show that the proposed criterion is robust for different loading conditions and more accurate than other existing strain energy/ductility-based methods.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A unified criterion for fatigue–creep life prediction of high temperature components


    Contributors:


    Publication date :

    2017-03-01


    Size :

    12 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





    A New Ductility Criterion for Fatigue-Creep Life Prediction of High Temperature Components (AIAA 2014-1058)

    Zhu, S. / Huang, H.-Z. / Liu, Y. et al. | British Library Conference Proceedings | 2014


    FATIGUE LIFE PREDICTION OF HIGH TEMPERATURE COMPONENTS IN COMBUSTION ENGINES

    Seifert, T. / Riedel, H. | British Library Conference Proceedings | 2009


    IPC2001D066 Normalized Life Prediction for High Temperature Materials Under Creep-Fatigue Interaction Conditions

    Jeong, C. Y. / Cho, W. S. / Kim, J. M. et al. | British Library Conference Proceedings | 2001