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| 论文题目 |
Guided waves in a multi-layered cylindrical elastic solid medium |
| 论文题目（英文） |
Guided waves in a multi-layered cylindrical elastic solid medium |
| 作者 |
张碧星 |
| 发表年度 |
2007 |
| 卷 |
10 |
| 期 |
24 |
| 页码 |
2883-2886 |
| 期刊名称 |
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| 摘要 |
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| 摘要_英文 |
We investigate the guided waves in a multi-layered cylindrical elastic solid medium. The dispersion function of guided waves is usually complex and the dispersion curves of all modes are not conveniently obtained. Here we present an effective method to obtain the dispersion curves of all modes. First, the dispersion function of the guided waves is transformed into a real function. The dispersion curves are then calculated for all the modes of the guided waves by the bisection method. The modes with the orders n = 0, 1, and 2 are analysed in two- and three-layer media. The existence condition of Stoneley wave is discussed. The modes of the guided waves are also investigated in a two-layer medium, in which the velocity of shear wave in the outer layer is less than that in the inner layer. |
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