Propagation of coherent shear waves in scattering elastic media.
basic_science · Level V
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- Record sourced from PubMed, PMID 34134239.
- Also identified by DOI 10.1103/PhysRevE.103.L051001.
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Abstract
We measure the reflection and transmission of shear waves by slabs of random dispersions of hard, dense spheres in a viscoelastic matrix. By modeling the slab as a Fabry-Pérot interferometer, we determine the effective wave number of coherent shear waves in this scattering medium and its effective mass density. We evidence the effect of the resonant rigid-body translation and rotation of the spheres on the propagation. We validate a vectorial model of multiple scattering for volume fractions of spheres up to 10%, revealing the signature of two modes of propagation.