Micromechanical modeling of viscoelastic voided composites in the low-frequency approximation

Michael R Haberman; Yves H Berthelot; J Jarzynski; Mohammed Cherkaoui

doi:10.1121/1.1509424

Micromechanical modeling of viscoelastic voided composites in the low-frequency approximation

J Acoust Soc Am. 2002 Nov;112(5 Pt 1):1937-43. doi: 10.1121/1.1509424.

Authors

Michael R Haberman¹, Yves H Berthelot, J Jarzynski, Mohammed Cherkaoui

Affiliation

¹ Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta 30332-0405, USA.

PMID: 12430805
DOI: 10.1121/1.1509424

Abstract

The self-consistent model of Cherkaoui et al. [J. Eng. Mater. Technol. 116, 274-278 (1994)] is used to compute the effective material moduli of a viscoelastic material containing coated spherical inclusions. Losses are taken into account by introducing the frequency-dependent, complex shear modulus of the viscoelastic matrix. Mode conversion appears through the localization tensors that govern the micromechanical behavior near the inclusions. The results are compared with the scattering model and the data of Baird et al. [J. Acoust. Soc. Am. 105, 1527-1538 (1999)]. The two models are in good agreement. The advantage of the self-consistent model is that it is applicable to the case of nonspherical inclusions embedded in anisotropic materials.

Publication types

Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

Anisotropy
Elasticity*
Models, Theoretical*
Viscosity*