Effective dynamic properties of random nanoporous materials with consideration of surface effects
文献类型：期刊论文
| 作者 | Qiang FW; Wei PJ(魏培君) |
| 刊名 | ACTA MECHANICA
 |
| 出版日期 | 2015-04 |
| 卷号 | 226期号:4页码:1201-1212 |
| 通讯作者邮箱 | weipj@ustb.edu.cn |
| ISSN号 | 0001-5970 |
| 产权排序 | [Qiang, Fangwei; 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 100080, Peoples R China |
| 通讯作者 | Wei, PJ (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech LNM, Beijing 100080, Peoples R China. |
| 中文摘要 | The frequency-dependent dynamic effective properties (velocity, attenuation and elastic modulus) of nanoporous materials with randomly positioned spherical cavities are studied. The surface energy theory proposed by Huang and Wang (Handbook of micromechanics and nanomechanics. Pan Stanford Publishing Pte Ltd., Singapore, pp 303-348, 2013) is used to derive the non-traditional boundary condition on the surface of the nanocavity and further the scattering matrix of a single nanocavity. Then, the total wave field is obtained by considering the multiple scattering processes among the dispersive spherical cavities. The configuration average of the total wave field results in the coherent waves or the averaged waves. The numerical examples of the effective speed, the effective attenuation of the coherent waves and associated effective dynamic modulus of a nanoporous material are given and shown graphically. The effects of surface elasticity and the residual surface tension are both considered. Moreover, the influences of the non-symmetric parts of in-plane surface stress and the out-of-plane parts of the surface stress are also discussed based on the numerical examples. |
| 学科主题 | Mechanics |
| 分类号 | 二类 |
| 类目[WOS] | Mechanics |
| 研究领域[WOS] | Mechanics |
| 关键词[WOS] | MATRIX COMPOSITE-MATERIALS ; ELASTIC-WAVE-PROPAGATION ; MULTIPLE-SCATTERING ; INTERFACE STRESS ; PARTICLES ; CONSTANTS ; SOLIDS ; MEDIA ; MODEL |
| 收录类别 | SCI ; EI |
| 原文出处 | http://dx.doi.org/10.1007/s00707-014-1220-3 |
| 语种 | 英语 |
| WOS记录号 | WOS:000351382500014 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/49903]  |
| 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 | Qiang FW,Wei PJ. Effective dynamic properties of random nanoporous materials with consideration of surface effects[J]. ACTA MECHANICA,2015,226(4):1201-1212. |
| APA | Qiang FW,&魏培君.(2015).Effective dynamic properties of random nanoporous materials with consideration of surface effects.ACTA MECHANICA,226(4),1201-1212. |
| MLA | Qiang FW,et al."Effective dynamic properties of random nanoporous materials with consideration of surface effects".ACTA MECHANICA 226.4(2015):1201-1212. |
入库方式： OAI收割
来源：力学研究所
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