The development and application of advanced nondestructive evaluation techniques for the Reinforced Carbon-Carbon (RCC) components of the Space Shuttle Orbiter Leading Edge Structural Subsystem (LESS) were identified as a crucial step toward returning the shuttle fleet to service. In order to help meet this requirement, eddy current techniques have been developed for application to RCC components. Eddy current technology has been found to be particularly useful for measuring the protective coating thickness over the reinforced carbon-carbon and for the identification of near surface cracking and voids in the RCC matrix. Testing has been performed on as manufactured and flown RCC components with both actual and fabricated defects representing impact and oxidation damage. Encouraging initial results have led to the development of two separate eddy current systems for in-situ RCC inspections in the orbiter processing facility. Each of these systems has undergone blind validation testing on a full scale leading edge panel, and recently transitioned to Kennedy Space Center to be applied as a part of a comprehensive RCC inspection strategy to be performed in the orbiter processing facility after each shuttle flight.


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    Titel :

    Application of eddy current techniques for Orbiter Reinforced Carbon-Carbon structural health monitoring


    Weitere Titelangaben:

    Anwendung von Wirbelstromverfahren zur Zustandsüberwachung von Kohlenstoff-Kohlenstoff Raumfahrt-Komponenten


    Beteiligte:
    Wincheski, B. (Autor:in) / Simpson, J. (Autor:in)


    Erscheinungsdatum :

    2006


    Format / Umfang :

    8 Seiten, 7 Bilder, 9 Quellen





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Datenträger


    Sprache :

    Englisch




    Emittance measurements of Space Shuttle Orbiter Reinforced Carbon-Carbon

    CARAM, JOSE / BOUSLOG, STANLEY / CUNNINGTON, JR., GEORGE | AIAA | 1993



    Emittance measurements of Space Shuttle Orbiter Reinforced Carbon-Carbon

    Caram, Jose M. / Bouslog, Stanley A. / Cunnington, George R., Jr. | NTRS | 1993


    Eddy-Current Detection Of Cracks In Reinforced Carbon/Carbon

    Christensen, Scott V. / Koshti, Ajay M. | NTRS | 1995


    Analysis of the Shuttle Orbiter reinforced carbon-carbon oxidation protection system

    Williams, S. D. / Curry, Donald M. / Chao, Dennis et al. | NTRS | 1994