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本文旨在讨论平面波入射到结合界面时粘弹性推广的斯奈尔定律解法,给出入射临界角的必要且充分条件,并给出存在已知两种介质和入射波复波向量时入射临界角的充分条件。这些条件表明在目前的弹性波场计算方法中如何去计算粘弹性效应的问题。
The purpose of this paper is to discuss the solution of Snell’s law of viscoelasticity when the plane wave is incident on the bond interface, and the necessary and sufficient conditions for the critical angle of incidence are given. The critical angle of incidence is given when there exist two known media and the incident wave complex vector The sufficient conditions. These conditions indicate how the problem of viscoelasticity can be calculated in the current elastic field calculation method.