IMECH-IR  > 非线性力学国家重点实验室
A trans-scale model for size effects and intergranular fracture in nanocrystalline and ultra-fine polycrystalline metals
Wu B(吴波); Liang LH(梁立红); Ma HS(马寒松); Wei YG(魏悦广); Wei, YG; Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
Source PublicationCOMPUTATIONAL MATERIALS SCIENCE
2012-05-01
Volume57Pages:2-7
ISSN0927-0256
AbstractA trans-scale mechanics model considering both strain gradient and interface energy effects is presented for describing size effects in nanocrystalline and ultra-fine polycrystalline metals accompanying by intergranular fracture. A finite element method is developed which is suitable for describing the strain gradient and interface energy effects. Moreover, cohesive interface model is used to study the intergranular damage and fracture in polycrystalline metals with nanoscale and ultra-fine grains. A systematical study on the overall strength and ductility of polycrystalline aggregates which depend on both grain interiors and grain boundaries for different grain sizes and different interface properties is performed. The results show that the overall strength and ductility of polycrystalline aggregates with nanoscale and ultra-fine grains strongly depend on the grain size and grain hardening, interface energy density, grain boundary strength and toughness.
KeywordInterface Energy Effect Strain Gradient Effect Intergranular Fracture Nanocrystalline Metal Cohesive Model Strain Gradient Plasticity Nanoindentation Test Mechanical-behavior Conventional Theory Crack-growth Deformation Solids Interface Nickel
Subject Area固体力学
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000300990200002
Funding OrganizationThe subject is supported by the National Science Foundation of China through Grant Nos. 11021262, 10932011, and 90816004.
DepartmentLNM新型材料及结构的多尺度力学
Classification二类/Q2
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/46665
Collection非线性力学国家重点实验室
Corresponding AuthorWei, YG; Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Wu B,Liang LH,Ma HS,et al. A trans-scale model for size effects and intergranular fracture in nanocrystalline and ultra-fine polycrystalline metals[J]. COMPUTATIONAL MATERIALS SCIENCE,2012,57:2-7.
APA 吴波,梁立红,马寒松,魏悦广,Wei, YG,&Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China..(2012).A trans-scale model for size effects and intergranular fracture in nanocrystalline and ultra-fine polycrystalline metals.COMPUTATIONAL MATERIALS SCIENCE,57,2-7.
MLA 吴波,et al."A trans-scale model for size effects and intergranular fracture in nanocrystalline and ultra-fine polycrystalline metals".COMPUTATIONAL MATERIALS SCIENCE 57(2012):2-7.
Files in This Item: Download All
File Name/Size DocType Version Access License
SCI-J2012-013.pdf(802KB) 开放获取--View Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[吴波]'s Articles
[梁立红]'s Articles
[马寒松]'s Articles
Baidu academic
Similar articles in Baidu academic
[吴波]'s Articles
[梁立红]'s Articles
[马寒松]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[吴波]'s Articles
[梁立红]'s Articles
[马寒松]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: SCI-J2012-013.pdf
Format: Adobe PDF
This file does not support browsing at this time
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.