Abnormality of the longitudinal Pochhammer–Chree waves in the vicinity of C2 phase speedстатьяИсследовательская статья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 26 декабря 2018 г.
Аннотация:The exact solutions of the linear Pochhammer–Chree equation for propagating harmonic waves in a cylindrical rod are
analyzed. Spectral analysis of the matrix dispersion equation for longitudinal axially symmetric modes is performed and
analytical expressions for displacement fields are obtained. The variation of wave polarization on the free surface due to
the variation of Poisson’s ratio and circular frequency is analyzed. It is observed that at the phase speed coinciding with
the bulk shear speed all the components of the displacement field vanish, meaning that no longitudinal axisymmetric
Pochhammer–Chree waves can propagate at this phase speed.