Effective dynamic properties of random nanoporous materials with consideration of surface effects

doi:10.1007/s00707-014-1220-3

IMECH-IR > 非线性力学国家重点实验室

	Effective dynamic properties of random nanoporous materials with consideration of surface effects
	Qiang FW; Wei PJ(魏培君); Wei, PJ (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech LNM, Beijing 100080, Peoples R China.
发表期刊	ACTA MECHANICA
	2015-04
卷号	226 期号:4 页码:1201-1212
ISSN	0001-5970
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.
学科领域	Mechanics
DOI	10.1007/s00707-014-1220-3
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000351382500014
关键词[WOS]	MATRIX COMPOSITE-MATERIALS ; ELASTIC-WAVE-PROPAGATION ; MULTIPLE-SCATTERING ; INTERFACE STRESS ; PARTICLES ; CONSTANTS ; SOLIDS ; MEDIA ; MODEL
WOS研究方向	Mechanics
WOS类目	Mechanics
项目资助者	National Natural Science Foundation of China [10972029] ; Opening fund of State Key Laboratory of Nonlinear Mechanics (LNM)
课题组名称	LNM固体物理力学
论文分区	二类
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/49903
专题	非线性力学国家重点实验室
通讯作者	Wei, PJ (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech LNM, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Qiang FW,Wei PJ,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,&Wei, PJ .(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.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
IMCAS-J2015-052.pdf（439KB）			开放获取	CC BY-NC	浏览下载