Wave propagation and the frequency domain Green's functions in viscoelastic Biot/squirt (BISQ) media
文献类型：期刊论文
| 作者 | Yang DH(杨顶辉); Shen YQ(申义庆) ; Liu ER
|
| 刊名 | International Journal of Solids and Structures
 |
| 出版日期 | 2007 |
| 卷号 | 44期号:14-15页码:4784-4794 |
| 通讯作者邮箱 | dhyang@math.tsinghua.edu.cn ; yqshen@imech.ac.cn ; E.Liu@bgs.ac.uk |
| 关键词 | Biot/Squirt (Bisq) Model Poroelasticity Viscoelastic Media Wave Propagation Green'S Function Elastic-Waves Squirt Scattering Model Biot |
| ISSN号 | 0020-7683 |
| 通讯作者 | Liu, ER (reprint author), Tsing Hua Univ, Dept Math Sci, Beijing 100084, Peoples R China. |
| 中文摘要 | In this paper, we examine the characteristics of elastic wave propagation in viscoelastic porous media, which contain simultaneously both the Biot-flow and the squirt-flow mechanisms (BISQ). The frequency-domain Green's functions for viscoelastic BISQ media are then derived based on the classic potential function methods. Our numerical results show that S-waves are only affected by viscoelasticity, but not by squirt-flows. However, the phase velocity and attenuation of fast P-waves are seriously influenced by both viscoelasticity and squirt-flows; and there exist two peaks in the attenuation-frequency variations of fast P-waves. In the low-frequency range, the squirt-flow characteristic length, not viscoelasticity, affects the phase velocity of slow P-waves, whereas it is opposite in the high-frequency range. As to the contribution of potential functions of two types of compressional waves to the Green's function, the squirt-flow length has a small effect, and the effects of viscoelastic parameter are mainly in the higher frequency range. Crown Copyright (C) 2006 Published by Elsevier Ltd. All rights reserved. |
| 类目[WOS] | Mechanics |
| 研究领域[WOS] | Mechanics |
| 关键词[WOS] | ELASTIC-WAVES ; SQUIRT ; SCATTERING ; MODEL ; BIOT |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000247989700012 |
| 公开日期 | 2009-08-03 ; 2010-06-13 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/33943]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Yang DH,Shen YQ,Liu ER. Wave propagation and the frequency domain Green's functions in viscoelastic Biot/squirt (BISQ) media[J]. International Journal of Solids and Structures,2007,44(14-15):4784-4794. |
| APA | 杨顶辉,申义庆,&Liu ER.(2007).Wave propagation and the frequency domain Green's functions in viscoelastic Biot/squirt (BISQ) media.International Journal of Solids and Structures,44(14-15),4784-4794. |
| MLA | 杨顶辉,et al."Wave propagation and the frequency domain Green's functions in viscoelastic Biot/squirt (BISQ) media".International Journal of Solids and Structures 44.14-15(2007):4784-4794. |
入库方式： OAI收割
来源：力学研究所
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