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Diffuse wave density and directionality in anisotropic solids
Authors:Norris Andrew N
Affiliation:Mechanical and Aerospace Engineering, Rutgers University, Piscataway, New Jersey 08854, USA. norris@rutgers.edu
Abstract:Several general results are derived for diffuse waves in anisotropic solids, including concise expressions for the modal density per unit volume d(omega), and for the participation factor matrix G. The latter is a second-order tensor which describes the orientational distribution of diffuse wave or reverberant energy, and reduces to the identity I under isotropy. Calculations of G for a variety of example materials show significant deviation from I even under moderate levels of anisotropy.
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