The dependence of the elastic vibrations package of Poisson''s ratio of the inner layer when converting PTA
As part of this work the dependence of the amplitude and phase of steady elastic vibrations occurring in a thin three-layer package of changes in the physical characteristics of one of the inner layer. The effect on elastic vibrations Poisson's ratio. Package outer layers are made of the same material. Problem is made in the framework of unbound thermoelasticity. The results show a nonlinear dependence of elastic waves from said parameter.