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https://hdl.handle.net/2440/115911
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dc.contributor.author | Mir, A. | - |
dc.contributor.author | Nguyen, G. | - |
dc.contributor.author | Sheikh, A. | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | International Journal of Solids and Structures, 2018; 152-153:161-184 | - |
dc.identifier.issn | 0020-7683 | - |
dc.identifier.issn | 1879-2146 | - |
dc.identifier.uri | http://hdl.handle.net/2440/115911 | - |
dc.description | Available online 3 July 2018 | - |
dc.description.abstract | This study presents the development of a thermodynamics-based constitutive model for describing the macro-mechanical behaviour of porous rocks. The model formulation is developed within the well-established framework of generalised thermodynamics, or thermodynamics with internal variables (TIV), in order to guarantee the thermodynamics admissibility of the results. A new way for coupling different mechanisms of energy dissipation is proposed within the framework of TIV, so that the essential aspects of macro-mechanical behaviour of porous rocks ranging from brittle to ductile, dilation and compaction, as well as various modes of localised failure, under shearing at a wide range of confining pressures are correctly captured. The pressure sensitive behaviour of porous rocks is captured by introducing a shift stress in the formulation of the yield function, through the concept of ‘frozen elastic energy’ or non-dissipative part of the plastic work, which is stored within the material during loading. The proposed model allows the investigation of several important aspects of macro-mechanical behaviour of porous rocks at both material and specimen levels. | - |
dc.description.statementofresponsibility | Arash Mir, Giang D. Nguyen , Abdul Hamid Sheikh | - |
dc.language.iso | en | - |
dc.publisher | Elsevier | - |
dc.rights | © 2018 Elsevier Ltd. All rights reserved. | - |
dc.source.uri | http://dx.doi.org/10.1016/j.ijsolstr.2018.06.025 | - |
dc.subject | Thermodynamics; damage; plasticity; porous rocks; brittle-ductile; localisation | - |
dc.title | A thermodynamics-based model for brittle to ductile behaviour and localised failure of porous rocks | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1016/j.ijsolstr.2018.06.025 | - |
dc.relation.grant | http://purl.org/au-research/grants/arc/FT140100408 | - |
dc.relation.grant | http://purl.org/au-research/grants/arc/DP140100945 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Sheikh, A. [0000-0002-2839-1707] | - |
Appears in Collections: | Aurora harvest 8 Civil and Environmental Engineering publications |
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