The objective of this program was to determine the feasibility of the crack growth gage as a more direct method for monitoring potential crack growth damage in fatigue critical areas of F-4 aircraft structure. The major task consisted on mounting crack growth gages on a full-scale F-4C/D fatigue test article and collecting crack growth data from the gages at specified intervals. Two additional tasks were comprised of conducting a gage qualification test program in accordance with MIL-STD-810C (Environmental Test Method) requirements, and determining an appropriate method for collecting data from the gage. Inconsistencies in constant amplitude test results and bonding problems encountered on the F-4C/D full-scale fatigue test article prevented the MIL-STD-810C qualification tests from being started. Results of this investigation indicated that further research and development of the crack growth gage concept is required before the gage can be recommended as a fleetwide tracking device. (Kursetz)


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    Titel :

    Experimental investigation of the crack growth gage


    Weitere Titelangaben:

    Experimentelle Untersuchung von Risswachstum-Messkalibern


    Beteiligte:
    Holloway, D.R. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1980


    Format / Umfang :

    100 Seiten


    Medientyp :

    Report


    Format :

    Print


    Sprache :

    Englisch




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