Volume 22, Issue 4 (October 2000)

    Residual Strength-Based Life Predictions of Composite Materials Under Combined Damage Mechanisms

    CODEN: CTROAD

      Format Pages Price  
    PDF 9 $25   ADD TO CART


    Abstract

    We seek a method by which the residual strengths of composites subjected to combined degradation mechanisms may be calculated. Three different approaches are considered. First, the inputs to the residual strength analysis are purely phenomenological. Second, we make use of a micromechanics-based simulation to combine the effects of two specified damage mechanisms. Finally, we develop a hybrid approach in which the results from the micromechanics simulations for individual mechanisms are used as inputs to the residual strength model as if they had been obtained from experimental data. The residual strength model is then used to predict the combined behavior, and the results are compared with those obtained directly from the simulations. For the two mechanisms considered (slow crack growth and asperity creep), the results for the detailed micromechanical simulations were accurately represented by the residual strength-based model.


    Author Information:

    Halverson, HG
    Graduate student and assistant professor, Virginia Polytechnic Institute and State University, Blacksburg, VA

    Case, SW
    Graduate student and assistant professor, Virginia Polytechnic Institute and State University, Blacksburg, VA


    Stock #: CTR10540J

    ISSN: 0884-6804

    DOI: 10.1520/CTR10540J

    ASTM International is a member of CrossRef.

    Author
    Title Residual Strength-Based Life Predictions of Composite Materials Under Combined Damage Mechanisms
    Symposium , 0000-00-00
    Committee D30