A generic computational model for three-dimensional fracture and fragmentation problems of quasi-brittle materials
File(s)
Accepted version
Author(s)
Guo, Liwei
Latham, John-Paul
Xiang, Jiansheng
Izzuddin, Bassam
Type
Journal Article
Abstract
Fracture and fragmentation in three dimensions are of great importance to understand the mechanical behaviour of quasi-brittle materials in failure stress states. In this paper, a generic computational model has been developed in an in-house C/C++ code using the combined finite-discrete element method, which is capable of modelling the entire three-dimensional fracturing process, including pre-peak hardening deformation, post-peak strain softening, transition from continuum to discontinuum, and explicit interaction between discrete fragments. The computational model is validated by Brazilian tests and polyaxial compression tests, and a realistic multi-layer rock model in an in situ stress condition is presented as an application example. The results show that the computational model can capture both continuum and discontinuum behaviour and therefore it provides an ideal numerical tool for fracture and fragmentation problems.
Date Issued
2020-11
Date Acceptance
2020-06-15
Citation
European Journal of Mechanics A: Solids, 2020, 84, pp.1-20
ISSN
0997-7538
Publisher
Elsevier
Start Page
1
End Page
20
Journal / Book Title
European Journal of Mechanics A: Solids
Volume
84
Copyright Statement
© 2020 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor
Engineering & Physical Science Research Council (EPSRC)
Exxon Mobil Upstream Research Company
Engineering & Physical Science Research Council (EPSRC)
Natural Environment Research Council (NERC)
Identifier
https://www.sciencedirect.com/science/article/pii/S0997753820304575
Grant Number
GR/S42699/01
itf-ISF-3
EP/H030123/1
NE/L000660/1
Subjects
0905 Civil Engineering
0913 Mechanical Engineering
Mechanical Engineering & Transports
Publication Status
Published online
Date Publish Online
2020-07-10