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Excess ultrasonic attenuation due to inhomogeneities in porous media
2008
Journal of the Acoustical Society of America
While Biot's theory seems well adapted to model the acoustical waves propagation in cancellous bone, some of its predictions do not agree with the experimental results. The excess of attenuation of the fast wave is one of these discrepancies. In this paper we propose a modified Biots model which takes into account the fluctuations of the physical parameters and their correlations. As a result of this model, we show that this excess of attenuation is due to several processes: i) classical Biot's
doi:10.1121/1.2934898
fatcat:cje4dfoirnegfbswxqtikymwn4