A Modified Phase-Field Fracture Model for Simulation of Mixed Mode Brittle Fractures and Compressive Cracks in Porous Rock
(2021) In Rock Mechanics and Rock Engineering 54(10). p.5375-5388- 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... (More)
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.
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- author
- Spetz, Alex
LU
; Denzer, Ralf
LU
; Tudisco, Erika
LU
and Dahlblom, Ola LU
- organization
- publishing date
- 2021
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Comparison to experiments, Compression driven fractures, Isogeometric analysis, Phase-field fracture model, Porous rock
- in
- Rock Mechanics and Rock Engineering
- volume
- 54
- issue
- 10
- pages
- 5375 - 5388
- publisher
- Springer
- external identifiers
-
- scopus:85114317479
- ISSN
- 0723-2632
- DOI
- 10.1007/s00603-021-02627-4
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2021, The Author(s). Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
- id
- 01566ac1-99e1-4a00-b6e9-99582e4079f9
- date added to LUP
- 2021-09-21 11:59:53
- date last changed
- 2025-04-04 14:13:17
@article{01566ac1-99e1-4a00-b6e9-99582e4079f9, abstract = {{<p>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.</p>}}, author = {{Spetz, Alex and Denzer, Ralf and Tudisco, Erika and Dahlblom, Ola}}, issn = {{0723-2632}}, keywords = {{Comparison to experiments; Compression driven fractures; Isogeometric analysis; Phase-field fracture model; Porous rock}}, language = {{eng}}, number = {{10}}, pages = {{5375--5388}}, publisher = {{Springer}}, series = {{Rock Mechanics and Rock Engineering}}, title = {{A Modified Phase-Field Fracture Model for Simulation of Mixed Mode Brittle Fractures and Compressive Cracks in Porous Rock}}, url = {{http://dx.doi.org/10.1007/s00603-021-02627-4}}, doi = {{10.1007/s00603-021-02627-4}}, volume = {{54}}, year = {{2021}}, }