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    Volume 23, Issue 1 (January 2001)

    A Damage Evolution Model for Viscoelastic Composite Laminates

    (Received 13 July 1999; accepted 19 September 2000)

    CODEN: CTROAD

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    Abstract

    A damage model for polymeric composite laminates operating at elevated temperatures is proposed. Viscoelastic behavior of the material is accounted for via the correspondence principle, and a variational approach is adopted to compute the temporal stresses within the laminate. Also, the effect of physical aging on ply level stress and on overall laminate behavior is included. An important feature of the model is that damage evolution predictions for viscoelastic laminates can be made. This allows us to track the mechanical response of the laminate up to large load levels, though within the confines of linear viscoelastic constitutive behavior.

    Author Information:

    Brinson, LC
    Associate professor, Northwestern University, Evanston, IL

    Akshantala, NV
    Postdoctoral fellow, Northwestern University, Evanston, IL

    Stock #: CTR10907J

    ISSN: 0884-6804

    DOI: 10.1520/CTR10907J

    Author
    Title A Damage Evolution Model for Viscoelastic Composite Laminates
    Symposium , 0000-00-00
    Committee D30