In the framework of the mechanical behavior optimization of the PEGASUS railgun supporting structure, the influence of the consolidating pressure of S2-Glass/PEEK and E-Glass/PEEK prepregs on the mode I interlaminar fracture toughness GIc is investigated. Three different data reduction methods are presented and used to determine the initiation and propagation values of GIc. Lower consolidating pressures, i.e. higher resin contents, lead to a better delamination resistance even if branching phenomena observed for the highest pressures slow down significantly the crack growth. The delamination of E-Glass reinforced specimens has proved more unstable but the GIc mean value obtained was much higher than for the S2-Glass reinforced specimens.


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    Title :

    Influence of the consolidating pressure of thermoplastic prepregs on the mode I interlaminar fracture toughness


    Additional title:

    Der Einfluss des Verfestigungsdrucks von thermoplastischen Prepregs auf die interlaminare Modus 1-Bruchzähigkeit


    Contributors:
    Avril, C. (author) / Reck, B. (author) / Perreux, D. (author) / Thiebaud, F. (author)


    Publication date :

    2008


    Size :

    10 Seiten, 14 Bilder, 1 Tabelle, 6 Quellen


    Type of media :

    Conference paper


    Type of material :

    Storage medium


    Language :

    English





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