The stress-strain state at the interface between elastic media, which represents a contact layer characterized by the size and a set of physical-mechanical parameters, is investigated. The interface is described using the models of stratified and block media, within which the problem of a plane wave propagating through the interface is considered. The analytical expressions for the interface reflection and refraction coefficients are obtained, which allow determining the deformations at the interface and the strain distribution in the contact layer. The respective relationships for the dependence of deformation on the layer thickness at different elastic parameters of the contacting media and the interface are calculated. The regularities of deformation at the interface, described by the models of layered and block media, are analyzed. The areas of equivalent applications of these models are determined for the analysis of deformations at the interface and their distribution in the contact layer.

中文翻译：

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波通过弹性介质接触层传播过程中的变形分析

研究了弹性介质之间界面处的应力应变状态，它代表了一个接触层，其特征是尺寸和一组物理机械参数。界面使用分层和块状介质模型进行描述，其中考虑了平面波通过界面传播的问题。获得了界面反射系数和折射系数的解析表达式，可以确定界面处的变形和接触层中的应变分布。计算了接触介质和界面在不同弹性参数下变形对层厚的依赖关系。分析了由层状和块状介质模型描述的界面变形规律。