This paper performs a comprehensive investigation on the high cycle fatigue (HCF) life prediction of turbine blade with film cooling holes. The modified theory of critical distance (MTCD) method is proposed to estimate the fatigue life of the specimen considering the notch sensitivity coefficient and multiaxial stress effect. Then, two types of specimens were designed with regard to the single-hole and multihole conditions. Afterwards, the dangerous path and fatigue life of the two specimens were achieved implementing the MTCD method. Then, the experiments and failure analysis were carried out. The results show that the stress concentration and multiaxial stress resulting from the film cooling holes are the primary reasons that the cracks originated. Meanwhile, the dangerous path of the single-hole specimen is quite different from the multihole specimen due to the interhole interference. Finally, most of the calculated fatigue life is within the twice error band of the tested life.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    High Cycle Fatigue Life Prediction of Single-Crystal Specimen Based on TCD Method and Crystal Plasticity Theory


    Beteiligte:
    Yunwu Wu (Autor:in) / Yixiong Liu (Autor:in) / Wei Wang (Autor:in) / Ying Li (Autor:in) / Rui Geng (Autor:in)


    Erscheinungsdatum :

    2023




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Unbekannt




    A New Method of Fatigue Life Prediction for Notched Specimen

    JIN Dan / GOU Zhifei | DOAJ | 2017

    Freier Zugriff


    Development of high sensitivity sacrificial specimen for fatigue life prediction of structures

    Fujimoto, Y. / Pirker, G. / Ito, H. et al. | Tema Archiv | 2002


    Probabilistic Mesomechanics for High Cycle Fatigue Life Prediction

    Tryon, R. G. / Cruse, T. A. / American Society of Mechanical Engineering | British Library Conference Proceedings | 1997


    Probabilistic Mesomechanics for High Cycle Fatigue Life Prediction

    Tryon, R. G. / Cruse, T. A. | British Library Online Contents | 1997