IMECH-IR  > 非线性力学国家重点实验室
Onset and Direction of Shear Banding Instability in Metallic Glasses
Chen Y(陈艳); Dai LH(戴兰宏); Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
Source PublicationJournal of Materials Science & Technology
2014-06
Volume30Issue:6Pages:616-621
ISSN1005-0302
AbstractThe shear banding instability occurs as the homogenous deformation in metallic glasses (MGs) develops to a critical point, at which the discontinuity in deformation rate is incipient across nano-scale shear bands. When and where the shear instability takes place is an important issue for understanding the shear band origin. However, such condition and direction of shear localization concerning the unique properties of MGs is still lacking for general stress state. In this paper, a new constitutive is introduced for MGs accounting for the pressure sensitivity, dilatancy and structural evolution; the shear banding is regarded as the appearance of instability in the constitutive description of inelastic deformation. Tying the bifurcation theory to the new constitutive, the general condition of deformation localization is derived. The shear band orientation corresponding to the easiest direction of shear instability is then obtained in dependence on pressure sensitivity, dilatancy and Poisson's ratio for MGs. The range of the predicted shear band angles is consistent with the experimental observations.
KeywordMetallic Glasses Shear Banding Instability Bifurcation
Subject AreaMaterials Science ; Metallurgy & Metallurgical Engineering
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000340350300013
Funding OrganizationFinancial support is from the National Key Basic Research Program of China (Grant No. 2012CB937500), the National Natural Science Foundation of China (Grants Nos. 11202221 and 11132011), and the CAS/SAFEA International Partnership Program for Creative Research Teams.
DepartmentLNM冲击动力学与新型材料力学性能
Classification二类
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/49012
Collection非线性力学国家重点实验室
Corresponding AuthorDai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Chen Y,Dai LH,Dai, LH . Onset and Direction of Shear Banding Instability in Metallic Glasses[J]. Journal of Materials Science & Technology,2014,30(6):616-621.
APA Chen Y,Dai LH,&Dai, LH .(2014).Onset and Direction of Shear Banding Instability in Metallic Glasses.Journal of Materials Science & Technology,30(6),616-621.
MLA Chen Y,et al."Onset and Direction of Shear Banding Instability in Metallic Glasses".Journal of Materials Science & Technology 30.6(2014):616-621.
Files in This Item: Download All
File Name/Size DocType Version Access License
IMCAS-J2014-164.pdf(2962KB) 开放获取--View Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Chen Y(陈艳)]'s Articles
[Dai LH(戴兰宏)]'s Articles
[Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chen Y(陈艳)]'s Articles
[Dai LH(戴兰宏)]'s Articles
[Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chen Y(陈艳)]'s Articles
[Dai LH(戴兰宏)]'s Articles
[Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: IMCAS-J2014-164.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

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