A modification of the phase-field model for mixed mode crack propagation in rock-like materials

Zhang, X; Sloan, SW; Vignes, C; Sheng, D

A modification of the phase-field model for mixed mode crack propagation in rock-like materials

Zhang, X Sloan, SW Vignes, C Sheng, D

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Publisher:: ELSEVIER SCIENCE SA
Publication Type:: Journal Article
Citation:: Computer Methods in Applied Mechanics and Engineering, 2017, 322, pp. 123-136
Issue Date:: 2017-08-01

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Field	Value	Language
dc.contributor.author	Zhang, X
dc.contributor.author	Sloan, SW
dc.contributor.author	Vignes, C
dc.contributor.author	Sheng, D https://orcid.org/0000-0002-1665-6931
dc.date.accessioned	2022-08-25T23:11:02Z
dc.date.available	2022-08-25T23:11:02Z
dc.date.issued	2017-08-01
dc.identifier.citation	Computer Methods in Applied Mechanics and Engineering, 2017, 322, pp. 123-136
dc.identifier.issn	0045-7825
dc.identifier.issn	1879-2138
dc.identifier.uri	http://hdl.handle.net/10453/160877
dc.description.abstract	The critical energy release rates for mode I and II fracture for rock-like materials are usually different. In this paper, a modified phase-field model is proposed for simulating mixed mode crack propagation. The model can distinguish between the critical energy release rates for mode I and mode II cracks. For the purpose of validation, rock-like materials with a single flaw or double flaws under compression are studied. 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 crack emergence followed by secondary cracks. Additionally, the typical types of crack coalescence observed in experimental tests are successfully reproduced, including the critical loads at which crack coalescence occurs.
dc.language	English
dc.publisher	ELSEVIER SCIENCE SA
dc.relation.ispartof	Computer Methods in Applied Mechanics and Engineering
dc.relation.isbasedon	10.1016/j.cma.2017.04.028
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	01 Mathematical Sciences, 09 Engineering
dc.subject.classification	Applied Mathematics
dc.title	A modification of the phase-field model for mixed mode crack propagation in rock-like materials
dc.type	Journal Article
utslib.citation.volume	322
utslib.for	01 Mathematical Sciences
utslib.for	09 Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2022-08-25T23:11:01Z
pubs.publication-status	Published
pubs.volume	322

Abstract:

The critical energy release rates for mode I and II fracture for rock-like materials are usually different. In this paper, a modified phase-field model is proposed for simulating mixed mode crack propagation. The model can distinguish between the critical energy release rates for mode I and mode II cracks. For the purpose of validation, rock-like materials with a single flaw or double flaws under compression are studied. 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 crack emergence followed by secondary cracks. Additionally, the typical types of crack coalescence observed in experimental tests are successfully reproduced, including the critical loads at which crack coalescence occurs.

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http://hdl.handle.net/10453/160877