Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/118328
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dc.contributor.authorWang, Y.en
dc.contributor.authorBui, H.en
dc.contributor.authorNguyen, G.en
dc.contributor.authorRanjith, P.en
dc.date.issued2019en
dc.identifier.citationInternational Journal of Solids and Structures, 2019; 159:40-57en
dc.identifier.issn0020-7683en
dc.identifier.issn1879-2146en
dc.identifier.urihttp://hdl.handle.net/2440/118328-
dc.description.abstractA new computational approach combining the Smooth Particle Hydrodynamics and a constitutive model that possesses an intrinsic length scale is proposed in this study for modelling rock fracture. In particular, a continuum-based size-dependent constitutive model with an embedded fracture process zone described by a cohesive model is adopted for modelling strain localisation in geomaterials. A length scale is introduced into the constitutive equations to describe the scale effect commonly observed in localised failure of geomaterials. The constitutive model is then employed in a mesh-free Taylor Smooth Particle Hydrodynamics (Taylor-SPH) framework to produce a new computational tool for rock fracture modelling. The key feature of the proposed numerical framework is that it describes the fracture geometry by a set of Lagrangian particles, which carry fracture information such as damage evolution and fracture orientation, thus bypassing the need to represent the fracture's topology and fracture orientation. To test the capability of this computational framework in simulating rock fracture behaviour, three mode-I numerical fracture tests including three-point bending test, Brazilian-disc test and semi-circular bending test are carried out and results validated with experimental data in the literature. The good agreement between numerical and experimental results suggests that the proposed method is a promising numerical approach to modelling rock fracture.en
dc.description.statementofresponsibilityYingnan Wang, Ha H. Bui, Giang D. Nguyen, P.G. Ranjithen
dc.language.isoenen
dc.publisherElsevieren
dc.rights© 2018 Elsevier Ltd. All rights reserved.en
dc.subjectRock fracture; size-dependent constitutive model; cohesive fracture; smoothed particle hydrodynamics; size effect; regularisationen
dc.titleA new SPH-based continuum framework with an embedded fracture process zone for modelling rock fractureen
dc.typeJournal articleen
dc.identifier.rmid0030099777en
dc.identifier.doi10.1016/j.ijsolstr.2018.09.019en
dc.relation.granthttp://purl.org/au-research/grants/arc/FT140100408en
dc.relation.granthttp://purl.org/au-research/grants/arc/DP170103793en
dc.identifier.pubid442216-
pubs.library.collectionCivil and Environmental Engineering publicationsen
pubs.library.teamDS14en
pubs.verification-statusVerifieden
pubs.publication-statusPublisheden
Appears in Collections:Civil and Environmental Engineering publications

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