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Journal of Reinforced Plastics and Composites
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The Effective Elastic Moduli of Plane-Weave Woven Fabric Composites by Numerical Homogenization

P. S. Theocaris

National Academy of Athens, P.O. Box 77230, 175 10 Athens, Greece

G. E. Stavroulakis

Institute of Applied Mechanics, Technical University of Braunschweig, Germany

Effective elastic moduli for cross-ply fiber reinforced materials, simulating plane-weave woven fabric composites, are computed by means of a numerical homogenization technique and a simplified two-dimensional model. The fibers are placed in consecutive layers of parallel arrays of fibers and each layer was orthogonally oriented with its two neighbouring layers. Thus, a two-dimensional problem may be considered as a plane strain problem for the numerical solution and leads to the determination of the effective elastic moduli of the composite. The approximations achieved by traditional analytic solutions, which have been already developed for longitudinal and transverse effective moduli of classical fiber reinforced composites, considering also the influence of mesophase between fibers and matrix, introduced by the first author, are compared with the homogenization results by means of numerical parametric experiments.

Key Words: plane-weave composites • numerical homogenization method

Journal of Reinforced Plastics and Composites, Vol. 16, No. 18, 1675-1691 (1997)
DOI: 10.1177/073168449701601804
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