| 平面体波在各向异性媒质中的传播 |
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| 引用本文： | 张海燕,刘镇清.平面体波在各向异性媒质中的传播[J].上海大学学报(英文版),2004,8(2):164-168. |
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| 作者姓名： | 张海燕 刘镇清 |
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| 作者单位： | [1]SchoolofCommunicationandInformationEngineering,ShanghaiUniversity,Shanghai200073,P.R.Chian [2]InstituteofAcoustics,TongjiUniversity,Shanghai200092,P.R.China |
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| 基金项目： | ProjectsupportedbytheScienceFoundationofShanghaiMuni cipalCommissionofEducation (GrantNo .0 3AK48) |
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| 摘 要： | Combining the linear transformation and the solution technique for the cubic equation,a general closed-form analyti solution for bulk waves in orthotropic anisotropic materials is obtained.This method is straightforward and general.Degenerated cases include transversely isotropic,cubic,and isotropic materials.Numerical computations are carried out on a fiber-reinforced composite plate modeled as a transversely isotropic media.The fibers are parallel to the top and bottom surfaces of the plate ,and they are rotated counterclockwise around the plate normal through different angles.The two-dimensional slowness curves corresponding to different rotations are presented graphically.The wave propagation characteristics displayed in slowness surfaces for different fiber orientation are analyzed.
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| 关 键 词： | 平面体波 各向异性媒质 传播 钝化 线性转换 弹性波 声学 |
| 收稿时间： | 8 May 2003 |
Propagation of elastic plane waves in homogeneous anisotropic media |
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| Zhang?Hai-yan,Liu?Zhen-qing.Propagation of elastic plane waves in homogeneous anisotropic media[J].Journal of Shanghai University(English Edition),2004,8(2):164-168. |
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| Authors: | Zhang Hai-yan Liu Zhen-qing |
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| Institution: | 1. School of Communication and Information Engineering, Shanghai University, Shanghai 200072, P. R. China
2. Institute of Acoustics, Tongji University, Shanghai 200092, P. R. China |
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| Abstract: | Combining the linear transformation and the solution technique for the cubic equation, a general closed-form analytic solution for bulk waves in orthotropic anisotropic materials is obtained. This method is straightforward and general. Degenerated cases include transversely isotropic, cubic, and isotropic materials. Numerical computations are carried out on a fiber-reinforced composite plate modeled as a transversely isotropic media. The fibers are parallel to the top and bottom surfaces of the plate, and they are rotated counterclockwise around the plate normal through different angles. The two-dimensional slowness curves corresponding to different rotations are presented graphically. The wave propagation characteristics displayed in slowness surfaces for different fiber orientation are analyzed. |
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| Keywords: | composite material anisotropic media wave propagation slowness |
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