Energy Flux in Elasticity and Electromagnetism
Here we present properties of the energy flux vector and the energy density of time-harmonic homogeneous and inhomogeneous plane waves. General results are presented for systems which are linear, conservative, and for which the energy flux vector and energy density involve products of pairs of field quantities. Specific new results are given in the case of linear anisotropic elasticity and electromagnetism. Finite-amplitude plane waves in Mooney-Rivlin elastic materials are also considered.
KeywordsEnergy Density Energy Flux Phase Speed Cauchy Stress Tensor Energy Conservation Equation
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