Determinations of both length scale and surface elastic parameters for fcc metals

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Determinations of both length scale and surface elastic parameters for fcc metals
	Song JR(宋晶如); Liu JY; Ma HS(马寒松); Liang LH(梁立红); Wei YG(魏悦广)
刊名	Comptes Rendus Mecanique
	2014-05
通讯作者邮箱	Ywei@LNM.imech.ac.cn
卷号	342 期号:5 页码:315-325
关键词	Trans-scale mechanics Cauchy-Born rule Surface energy density Length scale Surface elastic parameter
ISSN号	1631-0721
通讯作者	Wei, YG (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
产权排序	[Song, Jingru; Liu, Jianyun; Ma, Hansong; Liang, Lihong; Wei, Yuegaung] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
中文摘要	In the present research, a systematical study of trans-scale mechanics theory is performed. The surface/interface energy density varying with material deformation is considered, and the general surface/interface elastic constitutive equations are derived. New methods to determine the material length scale parameter and the surface elastic parameters based on a simple quasi-continuum method, i.e. the Cauchy-Born rule, are developed and applied to typical fcc metals. In the present research, the material length parameters will be determined through an equivalent condition of the strain energy density calculated by adopting the strain gradient theory and by adopting the Cauchy-Born rule, respectively. Based on the surface constitutive equations obtained in the present research, the surface elastic parameters are calculated by using the Gibbs definition of surface energy density and the Cauchy-Born rule method. (C) 2014 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
学科主题	Mechanics
分类号	Q3
收录类别	SCI
资助信息	This work was supported by the National Basic Research Program of China through 2012CB937500, and by the National Science Foundation of China through grants: 11021262, 10932011, 91216108.
原文出处	http://dx.doi.org/10.1016/j.crme.2014.03.004
语种	英语
WOS记录号	WOS:000338411100008
公开日期	2014-09-02
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/49020]
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	Song JR,Liu JY,Ma HS,et al. Determinations of both length scale and surface elastic parameters for fcc metals[J]. Comptes Rendus Mecanique,2014,342(5):315-325.
APA	Song JR,Liu JY,Ma HS,Liang LH,&Wei YG.(2014).Determinations of both length scale and surface elastic parameters for fcc metals.Comptes Rendus Mecanique,342(5),315-325.
MLA	Song JR,et al."Determinations of both length scale and surface elastic parameters for fcc metals".Comptes Rendus Mecanique 342.5(2014):315-325.