Inhomogeneous "longitudinal" plane waves in a deformed elastic material
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DESTRADE, M., HAYES, M (2004) 'Inhomogeneous longitudinal plane waves in a deformed elastic material'. Journal of Elasticity, 75 :147-165.
By definition, a homogeneous isotropic compressible Hadamard material has the property that an infinitesimal longitudinal homogeneous plane wave may propagate in every direction when the material is maintained in a state of arbitrary finite static homogeneous deformation. Here, as regards the wave, 'homogeneous' means that the direction of propagation of the wave is parallel to the direction of eventual attenuation; and 'longitudinal' means that the wave is linearly polarized in a direction parallel to the direction of propagation.