Effective dynamic properties of composite viscoelastic materials

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Abstract
General expressions for the dilatation modulus and density of compositeviscoelastic materials are derived within the framework of a theory that is an extension of the self‐consistent field approach. The dynamic dependence of these parameters is found up to values of wavenumber in the host medium times void radius equal to two. For various void concentrations and damping constants, the effective modulus shows regions of high stiffness and resonant compliance. The effective density shows single‐peaked behavior for various concentrations and damping constants. In the long wavelength limit the effective modulus and density agree with the results of other investigators.

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