Reflection and transmission of elastic waves at the interface between two gradient-elastic solids with surface energy

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	Reflection and transmission of elastic waves at the interface between two gradient-elastic solids with surface energy
	Li YQ; Wei PJ; Teng HH(滕宏辉)
刊名	EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
	2015-07
通讯作者邮箱	weipj@ustb.edu.cn
卷号	52 页码:54-71
关键词	Gradient elasticity Microstructure effects Surface effects
ISSN号	0997-7538
其他题名	EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
通讯作者	Wei, PJ (reprint author), Univ Sci & Technol Beijing, Dept Appl Mech, Beijing 100083, Peoples R China.
产权排序	[Li, Yueqiu; Wei, P. J.] Univ Sci & Technol Beijing, Dept Appl Mech, Beijing 100083, Peoples R China; [Wei, P. J.; Tang, Qihen] Chinese Acad Sci, State Key Lab Nonlinear Mech LNM, Beijing, Peoples R China
中文摘要	The reflection and transmission of an incident plane wave at an interface between two gradient elastic solids with surface energy are studied. First, some functions of strain energy density with the surface effects taken into consideration are postulated and the surface effects of gradient elastic solid are incorporated into the constitutive relations. Then, the nontraditional interface conditions by requiring the auxiliary monopolar tractions and the auxiliary dipolar tractions continuous across the interface are used to determine the reflection and transmission coefficients. Some numerical results of the reflection and transmission coefficient in terms of energy flux ratio are given for different microstructure parameters and surface parameters. The microstructure effects and the surface energy effects on the reflection and transmission waves are discussed based on the numerical results. It is found that the microstructure effects result in the appearance of two surface waves and the surface energy effects have apparent different influence on the body waves in gradient elastic solids and the surface waves at the interface. However, this phenomenon becomes pronounced only when the incident wavelength is close to the characteristic length of microstructure. (C) 2015 Elsevier Masson SAS. All rights reserved.
分类号	二类/Q2
类目[WOS]	Mechanics
研究领域[WOS]	Mechanics
关键词[WOS]	HALF-SPACE ; PLANE WAVES ; PROPAGATION ; BOUNDARY ; CONSTANTS ; STRESS
收录类别	SCI ; EI
原文出处	http://dx.doi.org/10.1016/j.euromechsol.2015.02.001
语种	英语
WOS记录号	WOS:000353736500006
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/49987]
专题	力学研究所_高温气体动力学国家重点实验室
推荐引用方式 GB/T 7714	Li YQ,Wei PJ,Teng HH. Reflection and transmission of elastic waves at the interface between two gradient-elastic solids with surface energy[J]. EUROPEAN JOURNAL OF MECHANICS A-SOLIDS,2015,52:54-71.
APA	Li YQ,Wei PJ,&Teng HH.(2015).Reflection and transmission of elastic waves at the interface between two gradient-elastic solids with surface energy.EUROPEAN JOURNAL OF MECHANICS A-SOLIDS,52,54-71.
MLA	Li YQ,et al."Reflection and transmission of elastic waves at the interface between two gradient-elastic solids with surface energy".EUROPEAN JOURNAL OF MECHANICS A-SOLIDS 52(2015):54-71.