| Wave Propagation Through a Micropolar Slab Sandwiched by Two Elastic Half-Spaces | |
| Zhang P; Wei PJ(魏培君); Li YQ; Wei, PJ (reprint author), Univ Sci & Technol Beijing, Dept Appl Mech, Beijing 100083, Peoples R China. | |
| Source Publication | JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME
 |
| 2016 | |
| Volume | 138Issue:4Pages:41008 |
| ISSN | 1048-9002 |
| Abstract | 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. |
| Keyword | Micropolar Elasticity Sandwiched Slab Reflection Transmission Energy Flux |
| DOI | 10.1115/1.4033198 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000379590800008 |
| WOS Keyword | micropolar elasticity ; sandwiched slab ; reflection ; transmission ; energy flux |
| WOS Research Area | Acoustics ; Engineering ; Mechanics |
| WOS Subject | Acoustics ; Engineering, Mechanical ; Mechanics |
| Funding Organization | The work was supported by Fundamental Research Funds for the Central Universities (FRF-BR-15-026A), National Natural Science Foundation of China (No. 10972029), and Opening Fund of State Key Laboratory of Nonlinear Mechanics (LNM). |
| Department | LNM固体物理力学 |
| Classification | 二类 |
| Ranking | False |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/59765 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Wei, PJ (reprint author), Univ Sci & Technol Beijing, Dept Appl Mech, Beijing 100083, Peoples R China. |
| Recommended Citation GB/T 7714 | Zhang P,Wei PJ,Li YQ,et al. 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,&Wei, PJ .(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. |
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| a2016-116.pdf（3971KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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