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Propagation behavior and low frequency band gap of transverse shear-horizontal interface waves in two perfectly-bonded functionally-graded half-spaces

机译:横向剪切水平接口波在两个完美粘合的功能分级半空间中的传播行为和低频带隙

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An analytical solution is carried out on the propagation of the transverse shear-horizontal interface waves in the perfect interface of two functionally graded half-spaces in which the bulk shear wave velocities at the positive and the negative infinite point are different. The dispersion curves results reveal a special phenomenon that the low frequency shear-horizontal waves cannot propagate in the structure but the high frequency shear-horizontal waves can. By analyzing the amplitude of the displacement, it is found that the energy hardly concentrate on the interface in this structure. The theoretical foundation of the transverse shear interface waves and their low frequency band gaps can serve as a basis for graded material characterization and for designing novel acoustic devices.
机译:在两个功能梯度半空间的完美界面中进行分析解决方案,其中阳性剪切波速度和负无限点的体积剪切波速度不同。色散曲线结果揭示了一种特殊的现象,即低频剪切水平波不能在结构中传播,但是高频剪切水平波可以。通过分析位移的幅度,发现能量几乎没有集中在该结构中的界面上。横向剪切界面波及其低频带间隙的理论基础可以作为分级材料表征和设计新型声学装置的基础。

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