You are being redirected because this document is part of your ASTM Compass® subscription.
    This document is part of your ASTM Compass® subscription.

    If you are an ASTM Compass Subscriber and this document is part of your subscription, you can access it for free at ASTM Compass
    STP1131

    Matrix Cracks and Interphase Failure in Transversely Loaded Fiber Composites

    Published: 01 January 1992


      Format Pages Price  
    PDF (236K) 14 $25   ADD TO CART
    Complete Source PDF (8.5M) 443 $266   ADD TO CART

    Cite this document

    X Add email address send
    X
      .RIS For RefWorks, EndNote, ProCite, Reference Manager, Zoteo, and many others.   .DOCX For Microsoft Word


    Abstract

    Interphases in a unidirectionally fiber-reinforced composite with hexagonal packing are modeled by the spring-layer model. The composite is subjected to transverse tensile loading. A critical value of the circumferential stress (σθ) at the matrix side of the interphase is taken as a criterion for the initiation of radial matrix cracks, while interphase failure is assumed to occur when the interphase strain energy density (U) exceeds a critical value. All numerical calculations have been carried out by the use of the boundary-element method. For a perfect composite, the results show σθ and U for various values of the interphase stiffnesses. For a composite that develops radial matrix cracking, U has been computed and the proclivity towards subsequent interphase failure is discussed. Conversely, for a composite that first develops interphase failure, σθ has been calculated to determine the tendency towards subsequent radial matrix cracking.

    Keywords:

    fiber composites, interphase failure, matrix cracks, fracture mechanics, fatigue (materials)


    Author Information:

    Zhu, H
    Post-doctoral fellow and professor, Center for Quality Engineering and Failure Prevention, Northwestern UniversityThe University of Tennessee, EvanstonKnoxville, ILTN

    Achenbach, JD
    Post-doctoral fellow and professor, Center for Quality Engineering and Failure Prevention, Northwestern UniversityThe University of Tennessee, EvanstonKnoxville, ILTN


    Committee/Subcommittee: E08.08

    DOI: 10.1520/STP23716S