UM
Effect of particle grading on the response of an idealized granular assemblage
Yan W.M.; Dong J.
2011
Source PublicationInternational Journal of Geomechanics
ISSN15323641
Volume11Issue:4Pages:276
AbstractThe effects of particle-size distribution on a granular assemblage's mechanical response were studied through a series of numerical triaxial tests using the three-dimensional (3D) discrete-element method. An assemblage was formed by spherical particles of various sizes. A simple linear contact model was adopted with the crucial consideration of varying contact stiffness with particle diameter. Numerical triaxial tests were mimicked by imposing axial compression under constant lateral pressure and constant volume condition, respectively. It was found that an assemblage with a wider particle grading gives more contractive response and behaves toward strain hardening upon shearing. Its critical state locates at a lower position in a void ratio versus mean normal stress plot. Nevertheless, no obvious difference in the critical stress ratio was shown. Model constants in a simple but efficient phenomenologically based granular material model within the framework of critical-state soil mechanics were calibrated from the numerical test results. Results show that some model constants exhibit linear variation with the coefficient of uniformity whereas others are almost independent of particle grading. This investigation provides an opportunity to better understand the implications and meanings of model constants in a phenomenologically based model from the microscale perspective. © 2011 American Society of Civil Engineers.
KeywordConstitutive models Dilatancy Discrete elements Particle size distribution Stress strain relations Triaxial tests
DOI10.1061/(ASCE)GM.1943-5622.0000085
URLView the original
Language英语
The Source to ArticleScopus
Fulltext Access
Citation statistics
Cited Times [WOS]:70   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Recommended Citation
GB/T 7714
Yan W.M.,Dong J.. Effect of particle grading on the response of an idealized granular assemblage[J]. International Journal of Geomechanics,2011,11(4):276.
APA Yan W.M.,&Dong J..(2011).Effect of particle grading on the response of an idealized granular assemblage.International Journal of Geomechanics,11(4),276.
MLA Yan W.M.,et al."Effect of particle grading on the response of an idealized granular assemblage".International Journal of Geomechanics 11.4(2011):276.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yan W.M.]'s Articles
[Dong J.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yan W.M.]'s Articles
[Dong J.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yan W.M.]'s Articles
[Dong J.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

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