The range of feasible technical applications of fibrous composite materials, in particular of carbon fiber-reinforced plastics, has widened substantially since their first introduction into mechanical engineering and lightweight construction. Composite materials are in widespread use mainly in aeronautical and aerospace engineering, since their high degree of stiffness and mechanical stability at low specific weight makes a substantial contribution to improving the performance of technical systems that are relevant to aeronautics. In order to reduce costs in the production of components, the development and provision of optimized fabrication procedures is of paramount significance. Just the handling and location of semi-finished fiber components accounts for approx. 30 % of the cost of injection technologies and up to 45 % of the cost of prepreg structures depending on their geometric complexity. The following paper presents a novel manufacturing technology for the fabrication of structures from carbon fiber composite materials. Termed 'hybrid fabrication', this technology is based on a combination of the prepreg and the injection technology both of which are already established in industrial production. Numerous experimental studies have been carried out to demonstrate the utility of this procedure for the manufacture of structural parts in aircraft construction. These investigations focussed mainly on the characterization of the contact zone generated through the use of two matrix systems as well as its mechanical properties. Flow experiments with a dye-containing injection resin system and subsequent tests of the mechanical properties of the joined samples have been used to demonstrate that the transition zone of the two matrix materials does not have detrimental effects on the composite in the case of the combination of materials tested. In order to demonstrate the feasibility of manufacture and the expected properties of a durable, hybrid-fabricated structural component, two demonstrators supplementing the proof of suitability are presented.


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    Titel :

    Hybrid fabrication route - cost efficient CFRP primary airframe structures


    Weitere Titelangaben:

    Hybride Fabrikation - kosteneffiziente primäre CFRP Flugzeugzellenstrukturen


    Beteiligte:
    Kaps, R. (Autor:in) / Herbeck, L. (Autor:in) / Herrmann, A. (Autor:in)


    Erscheinungsdatum :

    2006


    Format / Umfang :

    11 Seiten, 14 Bilder, 11 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    HYBRID FABRICATION ROUTE- COST EFFICIENT CFRP PRIMARY AIRFRAME STRUCTURES

    Kaps, R. / Herbeck, L. / Herrmann, A. et al. | British Library Conference Proceedings | 2006


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    Fabrication of airframe

    Gibson, W. | Engineering Index Backfile | 1932


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