Waveforms in additional components of elastic bulk waves

Additional components in elastic wavefields displacements are those which vanish in the case of a homogeneous–plane–wave propagation. For $P$–waves in a homogeneous isotropic solid, these are the transverse components. Waveforms in additional components in simple models of non–time–harmonic elastic wave propagation with plane wavefronts are analyzed. It is demonstrated that the models based on homogeneous waves with a transverse structure and inhomogeneous waves show a qualitative difference.