Reflection and transmission through a microstructured slab sandwiched by two half-spaces
文献类型：期刊论文
| 作者 | Li YQ; Wei PJ(魏培君) |
| 刊名 | EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
 |
| 出版日期 | 2016 |
| 卷号 | 57页码:1-17 |
| 通讯作者邮箱 | weipj@ustb.edu.cn |
| 关键词 | Reflection and transmission Gradient elasticity Sandwiched slab |
| ISSN号 | 0997-7538 |
| 产权排序 | [Li, Yueqiu; Wei, Peijun] Univ Sci & Technol Beijing, Dept Appl Mech, Beijing 100083, Peoples R China; [Wei, Peijun] Chinese Acad Sci, State Key Lab Nonlinear Mech LNM, Beijing, Peoples R China |
| 通讯作者 | Wei, PJ (reprint author), Univ Sci & Technol Beijing, Dept Appl Mech, Beijing 100083, Peoples R China. |
| 中文摘要 | The reflection and transmission of a plane wave through a microstructured slab sandwiched by two half spaces are studied in this paper. First, the wave propagation in a micro-structured solid of the dipolar gradient elasticity is formulated. Then, the reflection and transmission properties of a plane wave through a micro-structured slab sandwiched by two half-spaces are considered. The nontraditional interfacial conditions by requiring the auxiliary monopolar tractions, the auxiliary dipolar tractions, the displacements and the normal derivative of displacements continuous across the two interfaces are used to determine the amplitude ratio. The energy fluxes carried by various waves and the reflection and transmission coefficients in terms of energy flux ratio with respect to incident wave are calculated numerically. Based on these numerical results, the microstructure effects on the reflection and transmission waves for the incident P wave and incident SH wave with different wavelength are discussed. In particular, the influences of three characteristic lengths, namely, the incident wavelength, the thickness of slab and the characteristic length of microstructure, on the reflection and transmission waves are analyzed. It is found that the microstructure effect results in the appearance of evanescent wave mode. The reflection and transmission coefficients are evidently dependent upon the microstructure parameters and become more pronounced when the incident wavelength is close to the characteristic length of microstructure. (C) 2015 Elsevier Masson SAS. All rights reserved. |
| 分类号 | 二类 |
| 类目[WOS] | Mechanics |
| 研究领域[WOS] | Mechanics |
| 关键词[WOS] | Reflection and transmission ; Gradient elasticity ; Sandwiched slab |
| 收录类别 | SCI |
| 原文出处 | http://dx.doi.org/10.1016/j.euromechsol.2015.11.005 |
| 语种 | 英语 |
| WOS记录号 | WOS:000371651800001 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/59530]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Li YQ,Wei PJ. Reflection and transmission through a microstructured slab sandwiched by two half-spaces[J]. EUROPEAN JOURNAL OF MECHANICS A-SOLIDS,2016,57:1-17. |
| APA | Li YQ,&魏培君.(2016).Reflection and transmission through a microstructured slab sandwiched by two half-spaces.EUROPEAN JOURNAL OF MECHANICS A-SOLIDS,57,1-17. |
| MLA | Li YQ,et al."Reflection and transmission through a microstructured slab sandwiched by two half-spaces".EUROPEAN JOURNAL OF MECHANICS A-SOLIDS 57(2016):1-17. |
入库方式： OAI收割
来源：力学研究所
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