| 一维磁电弹准周期结构带隙特性的研究 |
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| 引用本文： | 庞玉,方圆侃,刘金喜.一维磁电弹准周期结构带隙特性的研究[J].固体力学学报,2012,33(2):153-161. |
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| 作者姓名： | 庞玉 方圆侃 刘金喜 |
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| 作者单位： | 1. 石家庄铁道大学工程力学系2. 3. 石家庄铁道学院研究生分院 |
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| 基金项目： | 国家自然科学基金，教育部“长江学者和创新团队发展计划” |
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| 摘 要： | 采用传递矩阵方法，研究了横波(SV波)垂直入射时压电/（弹性/压磁）和（压电/弹性）/压磁两种Fibonacci准周期结构的频带特性，通过计算局部化因子和位移透射系数，数值揭示了此两种Fibonacci准周期结构频带特性的差异以及与相应理想周期结构频带特性的不同，而且表明（压电/弹性）/压磁Fibonacci准周期结构的频带特性与纯弹性材料Fibonacci准周期结构的频带特性是相似的。
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| 关 键 词： | 磁电弹 准周期结构 平面波 Fibonacci序列 带隙 |
| 收稿时间： | 2010-10-20 |
BAND GAPS OF ONE-DIMENSIONAL MAGNETO-ELECTRO-ELASTIC QUASI-PERIODIC STRUCTURES |
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| Yu Pang
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Yuankan Fang
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Jinxi Liu.BAND GAPS OF ONE-DIMENSIONAL MAGNETO-ELECTRO-ELASTIC QUASI-PERIODIC STRUCTURES[J].Acta Mechnica Solida Sinica,2012,33(2):153-161. |
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| Authors: | Yu Pang Yuankan Fang Jinxi Liu |
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| Institution: | 1 (1Departments of Engineering Mechanics,Shijiazhang Tiedao University,Shijiazhang,050043)(2Department of Materials Science and Engineering,Zhejiang University,Hangzhou,310027) |
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| Abstract: | Band gaps for the two kinds of magneto-electro-elastic quasi periodic structures with Fibonacci sequence,one is the piezoelectric/(elastic/piezomagnetic) and the other is the(piezoelectric/elastic)/piezomagnetic,are studied by the transfer matrix methods.The normal incidence case for the shear waves(SV waves) is considered.The localization factors and displacement transmitted coefficients are computed and their band gaps are compared with the corresponding perfect periodic structures.The results show that the band gaps of the two structures are quite different.The band gaps for the(piezoelectric/elastic)/piezomagnetic quasi-periodic structures are indeed similar to those of the pure elastic structures with Fibonacci sequence. |
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| Keywords: | magneto-electro-elastic quasi periodic structures plane wave fibonacci sequence band gaps |
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