In this paper, the analysis of fatigue crack propagation on the folding beams mounted on the rear fuselage of a helicopter is performed under complex flight and folding load spectra; a preliminary cumulative damage fatigue analysis is used to select the zone of the structure where cracking is most likely to occur. A damage tolerance analysis is then carried out in the selected zone using an FEM-based approach in conjunction with a Three-Dimensional (3D) automatic crack propagation algorithm developed by the authors. The submodelling technique is used to obtain accurate results in the assessment area with a limited increase in the amount of time required for calculations. The numerical approach is validated by the experimental results of full-scale fatigue tests on the rear fuselage of the helicopter.


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    Titel :

    3D fatigue crack propagation analysis of a helicopter component


    Weitere Titelangaben:

    Dreidimensionale Ermüdungsrissausbreitungsanalyse einer Hubschrauberkomponente


    Beteiligte:
    Colombo, Daniele (Autor:in) / Giglio, Marco (Autor:in) / Manes, Andrea (Autor:in)


    Erscheinungsdatum :

    2007


    Format / Umfang :

    17 Seiten, 14 Bilder, 4 Tabellen, 21 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





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