Fracture and Structural Integrity e-ISSN 1971-8993 Open access
SI: Steels and Composites for Engineering Structures Vol. 16, No. 59 (2022)

DEM investigation on strain localization in a dense periodic granular assembly with high coordination number

Author and affiliation details
  • Trung-Kien Nguyen Corresponding author Faculty of Building and Industrial Construction, Hanoi University of Civil Engineering, 55 Giai Phong road, Hanoi, Vietnam ORCID iD0000-0003-0966-1617 kiennt3@nuce.edu.vn
  • Thanh-Trung Vo Department of Research and International Affairs, Danang Architecture University, Danang city, Vietnam ORCID iD0000-0003-0259-7165
  • Nhu-Hoang Nguyen Faculty of Building and Industrial Construction, Hanoi University of Civil Engineering
DOI
10.3221/IGF-ESIS.59.14
Pages
188-197
Published
Licence
CC BY 4.0
Published inVol. 16, No. 59 (2022)Go to the issue

Abstract

Strain localization is one of key phenomena which have been studied extensively in geomaterials and for different kinds of materials including metals and polymers. This well-known phenomenon appears when structure/material is closed to failure. Theoretical, experimental, and numerical research have been dedicated to this subject for a long while. In the numerical aspects, strain localization inside the periodic granular assembly has not been well studied in the literature. In this paper, we investigate the occurrence and development of strain localization within a dense cohesive-frictional granular assembly with high coordination number under bi-periodic boundary conditions by Discrete Element Modeling (DEM). The granular assembly is composed of 2D circular disks and subjected to biaxial loading with constant lateral pressure. The results show that the formation of shear bands is of periodic type, consistent with the boundary conditions. This formation has the origins of the irreversible losing of cohesive contacts, viewed as micro-crackings which strongly concentrated in the periodic shear zones. This micromechanical feature is therefore strongly related to the strain localization observed at the sample scale. Finally, we also show that the strain localization is in perfect agreement with the sample’s displacement fluctuation fields.

Keywords

Article history

  1. ReceivedUntil the next stage: 45 days
  2. RevisedUntil the next stage: 18 days
  3. AcceptedUntil the next stage: 61 days
  4. Published

About the authors

Trung-Kien Nguyen

Dr. Trung-Kien Nguyen received M.Sc. in Civil Engineering from Ecole Nationale des Travaux Publics de l'Etat (ENTPE, France) in 2010 and PhD degree in Civil Engineering from the University of Grenobles-Alpes in 2013. After a few years working as Research-Engineer in French Geological Survey (Orleans, France) and Grenoble Insitute of Technology (Grenoble, France), since 2019, he is lecturer at the Faculty of Building and Industrial Construction, Hanoi University of Civil Engineering (Hanoi, Vietnam)

His main research interests include the modeling of geomaterials/geomechanics problems and steel-composite structure. He is the author of more than 20 peer-reviewed publications.

Thanh-Trung Vo

Dr. Thanh-Trung Vo received PhD degree from the University of Montpellier in 2019. He is currently lecturer and head of department of science and technology of Danang Architecture University.

He is specialized in Rheology and granular texture of complex granular flows, Solid-Liquid interactions  and Discrete Element Method (DEM). He has published more than 10 peer-reviewed articles.

How to cite

APA

Nguyen, T.-K., Vo, T.-T., & Nguyen, N.-H. (2021). DEM investigation on strain localization in a dense periodic granular assembly with high coordination number. Fracture and Structural Integrity, 16(59), 188–197. https://doi.org/10.3221/IGF-ESIS.59.14

IEEE

T.-K. Nguyen, T.-T. Vo, and N.-H. Nguyen, “DEM investigation on strain localization in a dense periodic granular assembly with high coordination number,” Fracture and Structural Integrity, vol. 16, no. 59, pp. 188–197, 2021, doi: 10.3221/IGF-ESIS.59.14.

MLA

Nguyen, Trung-Kien, et al. “DEM investigation on strain localization in a dense periodic granular assembly with high coordination number.” Fracture and Structural Integrity, vol. 16, no. 59, 2021, pp. 188–197. https://doi.org/10.3221/IGF-ESIS.59.14.

Chicago

Nguyen, Trung-Kien, Thanh-Trung Vo, and Nhu-Hoang Nguyen. 2021. “DEM investigation on strain localization in a dense periodic granular assembly with high coordination number.” Fracture and Structural Integrity 16 (59): 188–197. https://doi.org/10.3221/IGF-ESIS.59.14.

Harvard

Nguyen, T.K., Vo, T.T. and Nguyen, N.H. (2021) ‘DEM investigation on strain localization in a dense periodic granular assembly with high coordination number’, Fracture and Structural Integrity, 16(59), pp. 188–197. doi: 10.3221/IGF-ESIS.59.14.

Vancouver

Nguyen TK, Vo TT, Nguyen NH. DEM investigation on strain localization in a dense periodic granular assembly with high coordination number. Fracture and Structural Integrity. 2021;16(59):188-197. doi:10.3221/IGF-ESIS.59.14

BibTeX

@article{nguyen2021, author = {Nguyen, Trung-Kien and Vo, Thanh-Trung and Nguyen, Nhu-Hoang}, title = {DEM investigation on strain localization in a dense periodic granular assembly with high coordination number}, journal = {Fracture and Structural Integrity}, year = {2021}, volume = {16}, number = {59}, pages = {188--197}, doi = {10.3221/IGF-ESIS.59.14}, url = {https://doi.org/10.3221/IGF-ESIS.59.14}, issn = {1971-8993} }

RIS

TY - JOUR AU - Nguyen, Trung-Kien AU - Vo, Thanh-Trung AU - Nguyen, Nhu-Hoang TI - DEM investigation on strain localization in a dense periodic granular assembly with high coordination number JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2021 DA - 2021/12/22 VL - 16 IS - 59 SP - 188 EP - 197 DO - 10.3221/IGF-ESIS.59.14 UR - https://doi.org/10.3221/IGF-ESIS.59.14 SN - 1971-8993 ER -

Licence

Creative Commons Attribution 4.0 International

May be shared and adapted, provided appropriate credit is given. Copyright © 2021 Trung-Kien Nguyen, Thanh-Trung Vo, Nhu-Hoang Nguyen.

Copyright 
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.  

Open Access Statement

Fracture and Structural Integrity (F&SI) is an open-access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the author. This is in accordance with the DOAI definition of open access.

F&SI operates under the Creative Commons Licence Attribution 4.0 International (CC-BY 4.0). This allows to copy and redistribute the material in any medium or format, to remix, transform and build upon the material for any purpose, even commercially, but giving appropriate credit, providing a link to the license, and indicating if changes were made.