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Determination of Flexible Interlayer Thickness for Fiber Reinforced Composites

  • King H. Lo (a1), Robert W. Schmitz (a1) and William G. Gottenberg (a1)


The influence of flexible interlayers/interphases on the performance of unidirectional fiber reinforced composites is studied. Micromechanical analysis based on the embedded composite cylinders model is used to study the stiffness as well as the internal stress distributions within the matrix phase of composites. Based on the results of the analysis, a criterion is proposed for the selection of optimal interlayer thickness for fiber composites. The proposed criterion gives results which seem to correlate well with the experimental data published in the literature.



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