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Elastic wave propagation in fiber reinforced composite materials with non-uniform distribution of fibers

J.T. Verbis1, S.V. Tsinopoulos2, D. Polyzos2
Institute of Chemical Engineering and High Temperature Chemical Processes-FORTH, GR 26500, Patras, Greece
Department of Mechanical and Aeronautical Engineering, University of Patras, GR 26500, Patras, Greece, and Institute of Chemical Engineering and High Temperature Chemical Processes-FORTH, GR 26500, Patras, Greece

Computer Modeling in Engineering & Sciences 2002, 3(6), 803-814. https://doi.org/10.3970/cmes.2002.003.803

Abstract

In the present work the iterative effective medium approximation (IEMA) is appropriately used for wave dispersion and attenuation predictions in fiber-reinforced composites that microscopically exhibit a non-uniform fiber distribution. Two types of composites with such irregular topology of fibers are considered. The first contains a regular distribution of clusters of fibers embedded in a composite matrix with uniformly distributed fibers, and the second a uniform distribution of matrix-rich inclusions embedded in a fiber-rich regular composite medium. The resulting from the application of the IEMA scattering problems are solved numerically by means of a two dimensional boundary element method. The obtained dispersion and attenuation curves are compared to those for the corresponding fiber-reinforced composite with a uniform distribution of fibers.

Keywords

Dispersion, attenuation, fiber composites, BEM, wave propagation, homogenization.

Cite This Article

Verbis, J., Tsinopoulos, S., Polyzos, D. (2002). Elastic wave propagation in fiber reinforced composite materials with non-uniform distribution of fibers. CMES-Computer Modeling in Engineering & Sciences, 3(6), 803–814.



This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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