Volume 17, Issue 1 (January 1995)

    Thermal Conductivity of Textile Composites with Arbitrary Preform Structures

    CODEN: CTROAD

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    Abstract

    In this paper, a model is constructed to predict the thermal conductivity of textile composite materials under steady state heat transfer conditions. First, the composite under consideration is geometrically characterized to identify relative volume fraction and spatial orientation of each yarn along its path. This is followed by applying finite element analysis (FEA) and virtual work to a “unit cell” of the textile composite. Hybrid hexahedra brick elements with fibers and matrix around each integration point are employed in the finite element formulation by means of micro-level homogenization. Thermal conductivity predictions using this approach are found to agree with experimental results for polymer and ceramic composites. The same approach can be used to solve other field problems including electrical conductivity, electrostatics, and moisture diffusion.


    Author Information:

    Chapman, D
    Senior engineer, United Technologies, Pratt & Whitney, FL

    Hwang, J-C
    Assistant professor and graduate student, Auburn University, Auburn, AL

    Gowayed, Y
    Assistant professor and graduate student, Auburn University, Auburn, AL


    Stock #: CTR10514J

    ISSN: 0884-6804

    DOI: 10.1520/CTR10514J

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    Author
    Title Thermal Conductivity of Textile Composites with Arbitrary Preform Structures
    Symposium , 0000-00-00
    Committee D30