Degradation and Failure Modes of Carbon/Bismaleimide Laminates Subjected to a Tropical Environment

    Volume 13, Issue 3 (January 1991)

    ISSN: 0884-6804

    CODEN: CTROAD

    Page Count: 4


    Kapusta, AA
    Research engineer and physical science technician, U.S. Army Armament RD&E Center, Watervliet, NY

    Underwood, JH
    Research engineer and physical science technician, U.S. Army Armament RD&E Center, Watervliet, NY

    Abstract

    The scanning electron microscope (SEM) was used to characterize the degradation of the outermost layers of carbon/bismaleimide laminates as the result of exposure to a natural tropical environment. The surface that was exposed to the sun for 4000 h suffered complete degradation of the bismaleimide matrix to a shallow depth.

    SEM fractography showed little difference in the fracture appearance of the fibers in a carbon/bismaleimide laminate, which displayed considerable fiber pullout, compared to fibers in a carbon/epoxy laminate, which displayed little pullout.


    Paper ID: CTR10224J

    DOI: 10.1520/CTR10224J

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    Author
    Title Degradation and Failure Modes of Carbon/Bismaleimide Laminates Subjected to a Tropical Environment
    Symposium , 0000-00-00
    Committee D30