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    Volume 17, Issue 1 (January 1995)

    Time-Dependent Behavior of a Graphite/Thermoplastic Composite and the Effects of Stress and Physical Aging

    CODEN: CTROAD

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    Abstract

    Experimental studies were performed to determine the effects of stress and physical aging on the matrix dominated time-dependent properties of IM7/8320 composite. Isothermal tensile creep/aging test techniques developed for polymers were adapted for testing of the composite material. Time-dependent transverse (S22) and shear (S66) compliance's for an orthotropic plate were found from short-term creep compliance measurements at constant, sub-Tg temperatures. These compliance terms were shown to be affected by physical aging. Aging time shift factors and shift rates were found to be a function of temperature and applied stress.


    Author Information:

    Feldman, M
    Old Dominion University, Norfolk, VA

    Gates, TS
    Research scientist, NASA Langley Research Center, Hampton, VA


    Stock #: CTR10511J

    ISSN: 0884-6804

    DOI: 10.1520/CTR10511J

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    Author
    Title Time-Dependent Behavior of a Graphite/Thermoplastic Composite and the Effects of Stress and Physical Aging
    Symposium , 0000-00-00
    Committee D30