The objective of this program was to develop the test data and analysis techniques required to insure the structural integrity of fiber reinforced metal matrix composites (FRMMC) when applied to airframe structures. Approximately 300 tests of unidirectional boron/6061 aluminum, (B4C)/125-3-3-3 titanium, and crossplied boron/6061 aluninum were performed. Testing was concentrated on notched (central hole) specimens to evaluate the notch sensitivy of these materials and to discriminate between the failure modes of aluminum and titanium matrix composites. It was found that the relative fiber and matrix stiffnesses and strengths determine primary failure modes in fatigue. Analysis methods were developed based on fiber and matrix properties to predict notched and unnotched static strenght, crack initiation, fatigue failure mode, life to failure, and residual strength. One half of the tests (150 specimens) were performed to verify the predicted properties of the aluminum and titanium matrix composites.


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    Titel :

    Durability of continuous fiber reinforced metal matrix composites


    Weitere Titelangaben:

    Dauerhaftigkeit von mit kontinuierlichen Fasern verstaerkten Metallen


    Beteiligte:
    Harmon, D.M. (Autor:in) / Saff, C.R. (Autor:in) / Sun, C.T. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1987


    Format / Umfang :

    219 Seiten


    Medientyp :

    Report


    Format :

    Print


    Sprache :

    Englisch




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