Composites are becoming more important materials in commercial aircraft structures such as the fuselage and wings with the new B787 Dreamliner from Boeing which has the target to utilize 50% by weight of composite materials. Carbon-fiber reinforced composites are the material of choice in aircraft structures. This is due to their light weight and high strength (high strength-toweight ratio), high specific stiffness, tailorability of properties, design flexibility etc. Especially, by reducing the aircraft's body weight by using such lighter structures, the cost of fuel can be greatly reduced with the high jet fuel price for commercial airlines. However, these composites are prone to impact damage and the damage may occur without any observable sign on the surface, yet resulting in delaminations and disbonds that may occur well within the layers. We are studying the impact problem with carbon-fiber reinforced composite panels and developing SonicIR for this application as a fast and wide-area NDE technology. In this paper, we present our results in studying composite structures including carbon-fiber reinforced composite materials, and preliminary quantitative studies on delamination type defect depth identification in the panels.


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    Titel :

    Studying impact damage on carbon-fiber reinforced aircraft composite panels with SonicIR


    Weitere Titelangaben:

    Untersuchung von Schlagschäden an kohlefaserverstärkten Luftfahrt-Verbundplatten mittels akustischer Infrarotprüfung


    Beteiligte:
    Han, Xiaoyan (Autor:in) / Zhao, Xinyue (Autor:in) / Ding Zhang (Autor:in) / He, Qi (Autor:in) / Song, Yuyang (Autor:in) / Lubowicki, Anthony (Autor:in) / Newaz, Golam (Autor:in) / Favro, Lawrence D. (Autor:in) / Thomas, Robert L. (Autor:in)


    Erscheinungsdatum :

    2011


    Format / Umfang :

    6 Seiten, 4 Bilder, 21 Quellen





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Datenträger


    Sprache :

    Englisch




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