Guo, Liwei;
Xiang, Jiansheng;
Latham, John-Paul;
Izzuddin, Bassam;
(2016)
A numerical investigation of mesh sensitivity for a new three-dimensional fracture model within the combined finite-discrete element method.
Engineering Fracture Mechanics
, 151
pp. 70-91.
10.1016/j.engfracmech.2015.11.006.
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Abstract
Recently a new three-dimensional fracture model has been developed in the context of the combined finite-discrete element method. In order to provide quantitative guidance for engineering applications, mesh size and orientation sensitivity are investigated by specially designed numerical tests. The mesh size sensitivity is analysed by modelling a single tensile fracture propagation problem and three-point bending tests using a series of models with the same geometry but different structured mesh sizes. The mesh orientation sensitivity is investigated by diametrically compressing a disc specimen of unstructured meshes from different angles. The computational efficiency of the three-dimensional fracture model is also studied.
| Type: | Article |
|---|---|
| Title: | A numerical investigation of mesh sensitivity for a new three-dimensional fracture model within the combined finite-discrete element method |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.engfracmech.2015.11.006 |
| Publisher version: | https://doi.org/10.1016/j.engfracmech.2015.11.006 |
| Language: | English |
| Additional information: | Copyright © 2015 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
| Keywords: | Numerical investigation; Three-dimensional fracture model; Mesh size sensitivity; Mesh orientation sensitivity; Combined finite-discrete element method |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10217492 |
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