The existence of simultaneous fatigue cracking in aircraft structures, generally referred to as Widespread Fatigue Damage (WFD), is one of the important damage tolerance and structural integrity concerns in aging commercial and military aircraft. Although it is now being increasingly recognized that the prediction of fatigue crack growth is best conducted in a probabilistic framework, there has been no sufficient research effort geared toward the development of unique probabilistic analysis algorithms for assessing the integrity of aircraft structural components inflicted with widespread fatigue damage. The present paper reports the formulation and illustrative application of a stochastic reliability model for the probabilistic assessment of WFD in aircraft structures. The model considers various failure criteria such as sudden crack link-up or coalescence and accounts for unique WFD features such as the interaction of cracks with each other and with structural features. Investigations show that the consideration of reliability limit states for individual fatigue cracks as components of a conventional system generally leads to dangerous overprediction of system reliability, compared to the model developed herein. Probabilistic sensitivity studies are also conducted to study the influence of the problem parameters on the reliability results.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Probabilistic assessment of multiple site damage in aircraft structures


    Weitere Titelangaben:

    Probabilistische Bewertung eines Mehrfachschadens in Flugzeugkonstruktionen


    Beteiligte:


    Erscheinungsdatum :

    1996


    Format / Umfang :

    8 Seiten, 2 Bilder, 2 Tabellen, 12 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Probabilistic Assessment of Multiple Site Damage in Aircraft Structures

    Orisamolu, I. / AIAA / ASME et al. | British Library Conference Proceedings | 1996


    A probabilistic estimation method of multiple site damage occurrence for aircraft structures

    Zhang, Jianyu / Bao, Rui / Zhang, Xiang et al. | Tema Archiv | 2010



    Probabilistic Assessment of the Influence of Multiple Site Cracking on the Damage Tolerance of Aircraft

    Orisamolu, I. R. / International Committee on Aeronautical Fatigue | British Library Conference Proceedings | 1997