Volume 3, Issue 3 (October 1981)

    Warping of Unsymmetric Cross-Ply Graphite/Epoxy Laminates


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    Residual stresses in composite laminates are induced by the anisotropic expansional properties of the constituent unidirectional plies. Immediately after fabrication, laminates are subjected to curing stresses because of the thermal expansion mismatch between plies with different fiber orientations. Furthermore, as the laminates are left in a moist environment, they absorb moisture and swell. The swelling strains can offset the curing strains with the net result of reduced residual stresses.

    Author Information:

    HT, Hahn
    Washington University, St. Louis, MO

    Stock #: CTR10736J

    ISSN: 0884-6804

    DOI: 10.1520/CTR10736J

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    Title Warping of Unsymmetric Cross-Ply Graphite/Epoxy Laminates
    Symposium , 0000-00-00
    Committee D30