Acoustic properties of composites containing multiple heterogeneities: micromechanics modelling Online publication date: Sat, 05-Jul-2014
by Jaesang Yu; Addis Kidane
International Journal of Theoretical and Applied Multiscale Mechanics (IJTAMM), Vol. 2, No. 4, 2013
Abstract: The acoustic properties of composites containing multiple distinct heterogeneities (spheres, platelets, voids, straight and/or wavy fibres, etc.) are predicted by a micromechanics modelling using a modified Mori-Tanaka and self-consistent methods. The influences of reinforcement geometries, elastic material properties and distinct acoustic properties of each constituent on the effective composite acoustic properties are investigated for tungsten/epoxy, tungsten/EPO-TEK 301 and alumina/EPO-TEK 301 composites. The influence of voids of dry entrained air on the acoustic properties of cements paste materials is also investigated. The predicted composite acoustic properties obtained from the current model agree reasonably well with experimental results from the literature.
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