Wave Propagation Through a Micropolar Slab Sandwiched by Two Elastic Half-Spaces
文献类型：期刊论文
| 作者 | Zhang P; Wei PJ(魏培君); Li YQ |
| 刊名 | JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME
 |
| 出版日期 | 2016 |
| 卷号 | 138期号:4页码:41008 |
| 通讯作者邮箱 | weipj@ustb.edu.cn |
| 关键词 | micropolar elasticity sandwiched slab reflection transmission energy flux |
| ISSN号 | 1048-9002 |
| 产权排序 | [Zhang, Peng; Wei, Peijun; Li, Yueqiu] Univ Sci & Technol Beijing, Dept Appl Mech, Beijing 100083, Peoples R China; [Wei, Peijun] Chinese Acad Sci, State Key Lab Nonlinear Mech LNM, Beijing 100080, 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 problem of wave propagation through a micropolar elastic slab sandwiched by two classical elastic half-spaces is studied in this paper. Different from the classical elastic solids, the particle in micropolar solids can bear not only the displacements but also the rotations. The additional kinetic freedom results in four kinds of wave modes, namely, the longitudinal displacement (LD) wave, the longitudinal microrotational (LR) wave, and two coupled transverse (CT) waves. Apart from the LD wave, the other three waves are dispersive. The existence of couple stresses and the microrotations also makes the interface conditions between the micropolar slab and the classic elastic half-spaces different from that between two classic solids. The nontraditional interface conditions lead to a set of algebraic equations from which the amplitude ratios of reflection and transmission waves can be determined. Further, the energy fluxes carried by various waves are evaluated and the energy conservation is checked to validate the numerical results obtained. The influences of the micropolar elastic constants and the thickness of slab are discussed based on the numerical results. Two situations of incident P wave and incident SH wave are both considered. |
| 分类号 | 二类 |
| 类目[WOS] | Acoustics ; Engineering, Mechanical ; Mechanics |
| 研究领域[WOS] | Acoustics ; Engineering ; Mechanics |
| 关键词[WOS] | micropolar elasticity ; sandwiched slab ; reflection ; transmission ; energy flux |
| 收录类别 | SCI ; EI |
| 原文出处 | http://dx.doi.org/10.1115/1.4033198 |
| 语种 | 英语 |
| WOS记录号 | WOS:000379590800008 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/59765]  |
| 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 | Zhang P,Wei PJ,Li YQ. Wave Propagation Through a Micropolar Slab Sandwiched by Two Elastic Half-Spaces[J]. JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME,2016,138(4):41008. |
| APA | Zhang P,Wei PJ,&Li YQ.(2016).Wave Propagation Through a Micropolar Slab Sandwiched by Two Elastic Half-Spaces.JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME,138(4),41008. |
| MLA | Zhang P,et al."Wave Propagation Through a Micropolar Slab Sandwiched by Two Elastic Half-Spaces".JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME 138.4(2016):41008. |
入库方式： OAI收割
来源：力学研究所
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