| Love Waves in Layered Graded Composite Structures with Imperfectly Bonded Interface |
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| 作者姓名： | LIU Hua YANG Jia-ling LIU Kai-xin |
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| 作者单位： | LIU Huaa，*，YANG Jia-linga，LIU Kai-xinb aInstitute of Solid Mechanics，Beijing University of Aeronautics and Astronautics，Beijing 100083，China bDepartment of Mechanics and Engineering，Peking University，Beijing 100871，China |
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| 基金项目： | 北京大学工程研究院北京市教委联合建设项目 |
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| 摘 要： | Theoretical analysis and numerical calculations of Love wave propagation in layered graded composites with imperfectly bonded interface are described in this paper. On the basis of WKB method, the approximate analytic solutions for Love waves are obtained. By the interface shear spring model, the dispersion relations for Love waves in layered graded composite structures with rigid, slip, and imperfectly bonded interfaces are given, and the effects of the interface conditions on the phase velocities of Love waves in SiC/Al lay- ered graded composites are discussed. Numerical analysis shows that the phase velocity decreases when the defined flexibility parameter is greater. For the general imperfectly bonded interface, the phase velocity changes in the range of the velocities for the rigid and slip interface conditions.
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| 关 键 词： | 分层等级复合材料 分散关系 传热功能 微波 |
| 收稿时间： | 28 April 2006 |
| 修稿时间： | 2006-08-282006-11-01 |
Love Waves in Layered Graded Composite Structures with Imperfectly Bonded Interface |
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| LIU Hua YANG Jia-ling LIU Kai-xin.Love Waves in Layered Graded Composite Structures with Imperfectly Bonded Interface[J].Chinese Journal of Aeronautics,2007,20(3):210-214. |
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| Authors: | Hua LIU Jia-ling YANG Kai-xin LIU |
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| Institution: | aInstitute of Solid Mechanics, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;bDepartment of Mechanics and Engineering, Peking University, Beijing 100871, China |
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| Abstract: | Theoretical analysis and numerical calculations of Love wave propagation in layered graded composites with imperfectly bonded interface are described in this paper. On the basis of WKB method, the approximate analytic solutions for Love waves are obtained. By the interface shear spring model, the dispersion relations for Love waves in layered graded composite structures with rigid, slip, and imperfectly bonded interfaces are given, and the effects of the interface conditions on the phase velocities of Love waves in SiC/Al layered graded composites are discussed. Numerical analysis shows that the phase velocity decreases when the defined flexibility parameter is greater. For the general imperfectly bonded interface, the phase velocity changes in the range of the velocities for the rigid and slip interface conditions. |
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| Keywords: | Love wave layered graded composites WKB method dispersion relation Interface Structures Graded Composite Layered Waves changes range general Numerical phase velocity decreases defined flexibility parameter effects conditions interfaces slip dispersion graded composite |
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