Prediction of the dynamic effective properties of particle-reinforced composite materials

Peijun Wei

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    Cite this article as:

    Peijun Wei, Prediction of the dynamic effective properties of particle-reinforced composite materials, J. Univ. Sci. Technol. Beijing , 12(2005), No. 1, pp.54-59.
    Peijun Wei, Prediction of the dynamic effective properties of particle-reinforced composite materials, J. Univ. Sci. Technol. Beijing , 12(2005), No. 1, pp.54-59.
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    Materials

    Prediction of the dynamic effective properties of particle-reinforced composite materials

    • Applied Sciences School, University of Science and Technology Beijing, Beijing 100083, China

    基金项目: 

    This work financially supported by National Natural Science Foundation of China (No. 10272003) and the Talent Foundation of University of Science & Technology Beijing.

      通信作者:

      Peijun Wei E-mail: weipj@126.com

    中文摘要

    The prediction behaviors of some coherent plane wave equations for the effective velocities and attenuations of the coherent plane waves propagating through a composite material and for the effective elastic moduli of the composites are studied. The numerical results obtained by Waterman & Truell's, Twersky's and Gubernatis's equations for Glass-Epoxy composites with various volume fractions are compared. It is found that the predictions by both Twersky's and Gubematis's equations underestimate the effective velocities and the effective elastic moduli when compare with the predictions by Waterman & Truell's equation. Furthermore,the deviations are more evident for the shear wave than that for the longitudinal wave. But these deviations decrease gradually with the increase of the frequency and increase gradually with the increase of the volume fraction.

     

    Materials

    Prediction of the dynamic effective properties of particle-reinforced composite materials

    Author Affilications

      • Applied Sciences School, University of Science and Technology Beijing, Beijing 100083, China

    • Funds: 

      This work financially supported by National Natural Science Foundation of China (No. 10272003) and the Talent Foundation of University of Science & Technology Beijing.

    • Received: 29 March 2004;
    The prediction behaviors of some coherent plane wave equations for the effective velocities and attenuations of the coherent plane waves propagating through a composite material and for the effective elastic moduli of the composites are studied. The numerical results obtained by Waterman & Truell's, Twersky's and Gubernatis's equations for Glass-Epoxy composites with various volume fractions are compared. It is found that the predictions by both Twersky's and Gubematis's equations underestimate the effective velocities and the effective elastic moduli when compare with the predictions by Waterman & Truell's equation. Furthermore,the deviations are more evident for the shear wave than that for the longitudinal wave. But these deviations decrease gradually with the increase of the frequency and increase gradually with the increase of the volume fraction.

     

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