Abstract
In this work, we propose a modified phase-field model for simulating the evolution of mixed mode fractures and compressive driven fractures in porous artificial rocks. For the purpose of validation, the behaviour of artificial rock samples, with either a single or double saw cuts, under uniaxial plane strain compression has been numerically simulated. The simulated results are compared to experimental data, both qualitatively and quantitatively. It is shown that the proposed model is able to capture the commonly observed propagation pattern of wing cracks emergence followed by secondary cracks driven by compressive stresses. Additionally, the typical types of complex crack patterns observed in experimental tests are successfully reproduced, as well as the critical loads.
Original language | English |
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Pages (from-to) | 5375-5388 |
Journal | Rock Mechanics and Rock Engineering |
Volume | 54 |
Issue number | 10 |
Early online date | 2021 |
DOIs | |
Publication status | Published - 2021 |
Bibliographical note
Publisher Copyright:© 2021, The Author(s).
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
Subject classification (UKÄ)
- Geotechnical Engineering
Free keywords
- Comparison to experiments
- Compression driven fractures
- Isogeometric analysis
- Phase-field fracture model
- Porous rock