| 弱界面压电／压磁层状结构中的SH波 |
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| 引用本文： | 赵星,赵永茂,刘金喜. 弱界面压电／压磁层状结构中的SH波[J]. 力学学报, 2011, 43(5): 948-952. DOI: 10.6052/0459-1879-2011-5-lxxb2010-718 |
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| 作者姓名： | 赵星 赵永茂 刘金喜 |
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| 作者单位： | 1. 石家庄铁道学院工程力学系;2. 石家庄铁道大学工程力学系; |
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| 基金项目： | 国家自然科学基金(10972147); 长江学者和创新团队发展计划(IRT0971)资助项目~~ |
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| 摘 要： | 研究了弱界面压电层/压磁半空间结构中SH波的频散特性, 界面性能由``弹簧'模型表征, 压电层的表面考虑电学短路和电学开路两种边界条件. 推导了显函形式的频散方程, 并结合算例分析了界面性能和电学边界条件对SH波传播特性的影响. 数值结果表明: 弱界面降低了SH波传播的相速度; 对于短路电边界条件, 弱界面可以使一阶模态的相速度小于B-G表面波的速度; 对于开路电边界条件, 一阶模态的相速度总是大于剪切体波的波速.
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| 关 键 词： | 压电材料 压磁材料 层状结构 SH波 弱界面 相速度 频散特性 |
| 收稿时间： | 2010-11-01 |
SH WAVES IN A PIEZOELECTRIC/PIEZOMAGNETIC LAYERED HALF-SPACE WITH A WEAK INTERFACE |
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| Zhao Xing Zhao Yongmao Liu Jinxi). SH WAVES IN A PIEZOELECTRIC/PIEZOMAGNETIC LAYERED HALF-SPACE WITH A WEAK INTERFACE[J]. chinese journal of theoretical and applied mechanics, 2011, 43(5): 948-952. DOI: 10.6052/0459-1879-2011-5-lxxb2010-718 |
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| Authors: | Zhao Xing Zhao Yongmao Liu Jinxi) |
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| Affiliation: | Department of Engineering Mechanics, Shijiazhuang Tiedao University, Shijiazhuang 050043, China |
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| Abstract: | This paper investigates the dispersion characteristics of shear horizontal(SH) waves propagating in a piezoelectric/piezomagnetic layered half-space with a weak interface.The so-calledspringmodel is used to describe the interfacial property.The surface of the piezoelectric layer is electrically closed or open.The closes-form dispersion equation is derived,and the numerical examples are provided to show the influences of the interfacial property and the electrical boundary conditions on the dispersive charac... |
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| Keywords: | piezoelectric material piezomagnetic material layered structure SH wave weak interface phase velocity dispersion characteristic |
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