Homogenization in three-dimensional phononic crystals
نویسنده
چکیده
We use a simple model to determine the frequency-dependent effective elastic coefficients of a three-dimensional phononic crystal, consisting of periodically arranged solid spheres embedded in fluid host, through theoretical calculations of the transmission coefficient and frequency band structure diagrams, using multiple-scattering techniques. Our results are successfully compared to those obtained from effective medium theories at the long wavelength limit.
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