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Inclusion problem in second gradient elasticity
Ma HS(马寒松); Hu GK; Wei YG(魏悦广); Liang LH(梁立红)
2018-11-01
发表期刊INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
卷号132页码:60-78
ISSN0020-7225
摘要The Green's function and Eshelby tensors of an infinite linear isotropic second gradient continuum are derived for an inclusion of arbitrary shape. Particularly for spherical, cylindrical and ellipsoidal inclusions, Eshelby tensors and their volume averages are obtained in an analytical form. It is found that the Eshelby tensors are not uniform inside the inclusion even for a spherical inclusion, and their variations depend on the two characteristic lengths of second gradient theory. When size of inclusion is large enough compared to the characteristic lengths, the Eshelby tensor of the second gradient medium is reduced to the classical one, as expected. It is also demonstrated that the existing Green's functions and Eshelby tensors of couple stress theory, Aifantis, Kleinert and Wei-Hutchinson special strain gradient theories could be recovered as special cases. This work paves the way for constructing micromechanical method to predict size effect of composite materials, as shown for the effective modulus of particulate composite derived with the proposed theory. (C) 2018 Elsevier Ltd. All rights reserved.
关键词Green's function Eshelby tensor Second gradient Inclusion Effective modulus
DOI10.1016/j.ijengsci.2018.07.003
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收录类别SCI ; EI
语种英语
WOS记录号WOS:000446151900005
关键词[WOS]PARTICLE-SIZE ; MATRIX COMPOSITES ; GREENS-FUNCTION ; FIELDS ; DEFORMATION ; PLASTICITY ; CONTINUA ; FRACTURE
WOS研究方向Engineering, Multidisciplinary
WOS类目Engineering
项目资助者National Natural Science Foundation of China [11572329, 11432014, 11672301, 11372318, 11672296, 11521202] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB22040501]
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力学所作者排名1
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文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77933
专题非线性力学国家重点实验室
作者单位1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
2.Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, Peoples R China
3.Peking Univ, Coll Engn, Beijing 100871, Peoples R China
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GB/T 7714
Ma HS,Hu GK,Wei YG,et al. Inclusion problem in second gradient elasticity[J]. INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE,2018,132:60-78.
APA 马寒松,Hu GK,魏悦广,&梁立红.(2018).Inclusion problem in second gradient elasticity.INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE,132,60-78.
MLA 马寒松,et al."Inclusion problem in second gradient elasticity".INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE 132(2018):60-78.
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