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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); Wei, YG (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
Source PublicationComptes Rendus Mecanique
2014-05
Volume342Issue:5Pages:315-325
ISSN1631-0721
AbstractIn 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.
KeywordTrans-scale Mechanics Cauchy-born Rule Surface Energy Density Length Scale Surface Elastic Parameter
Subject AreaMechanics
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Indexed BySCI
Language英语
WOS IDWOS:000338411100008
Funding OrganizationThis 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.
DepartmentLNM新型材料及结构的多尺度力学
ClassificationQ3
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/49020
Collection非线性力学国家重点实验室
Corresponding AuthorWei, YG (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
Recommended Citation
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,&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.
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