Life extension programs for military metallic aircraft are becoming increasingly important as defense budgets shrink and world economies realign themselves to an uncertain future. For existing military weapon systems, metallic corrosion damage costs as estimated$8 billion per year. One approach to reducing this cost is to develop a reliable method to detect and monitor corrosion in hidden metallic structure with the use of corrosion sensors which would give an early indication of corrosion without significant disassembly, thereby reducing maintenance costs. This presentation describes the development, analysis, and testing of a fiber optic corrosion sensor. In the sensor which was researched, the normal cladding is removed in the sensor region, and replaced with aluminum alloy and allowed to corrode on coupons representative of C/KC-135 body structure in an ASTM B117 salt spray chamber and a Boeing developed crevice corrosion cell. In this approach, the optical signal output of the sensor was originally designed to increase as corrosion takes place, however interaction with the corrosion byproducts yielded different results than anticipated. These test results to determine a correlation between the sensor output and the structural degradation due to corrosion are discussed.


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    Titel :

    Aluminum alloy clad fiber optic corrosion sensor


    Beteiligte:
    Rutherford, P. (Autor:in) / Ikegami, R. (Autor:in) / Shrader, J. (Autor:in) / Sherrer, D. (Autor:in) / Zabaronick, N. (Autor:in) / Zeakes, J. (Autor:in) / Murphy, K. (Autor:in) / Claus, R. (Autor:in)


    Erscheinungsdatum :

    1997


    Format / Umfang :

    12 Seiten, 2 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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