Abstract
In this article explores the problem of destruction of layered media under combined dynamic load. The research is aimed at the influence of background harmonic oscillations on the amplitude of the main force pulse. In previous works,results were obtained for a simple one - dimensional model - a string on an elastic base. As a result, it turned out that it is possible to significantly reduce the value of the critical amplitude of the destructive effect due to the correct selection of the excitation frequency. This effect is observed even at low intensities of the background field. The criterion of incubation time was used as a condition for breaking the adhesive layer. In this paper, we will also investigate the features of the fracture as a consequence of the combined effect of the force and the external harmonic field. However, the results obtained in this paper will be presented for a two - dimensional model - a circular membrane on an elastic base. You will notice that there is a similar effect, as in the case of strings. External background field tuned to a certain frequency can significantly reduce the value of the critical amplitude of the separation of the adhesive layer. The incubation time criterion will also be used as a destructioncriterion.
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