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Controlling behaviour of constitutive models for rocks using energy dissipations

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dc.contributor.authorNguyen, N.T.
dc.contributor.authorNguyen, G.D.
dc.contributor.authorKarakus, M.
dc.contributor.authorBui, H.H.
dc.contributor.authorPhan, D.G.
dc.date.issued2025
dc.description.abstractThe behaviour of rocks and other similar geomaterials is governed by different underling dissipative mechanisms that can be represented by damage and plastic strains in continuum constitutive modelling. The explicit links between these dissipative mechanisms and constitutive behaviour are established in this study in a generic thermodynamics-based framework. The key feature of this proposed framework and derived damage-plasticity models is the capability to control the constitutive behaviour through varying the contributions of different dissipative mechanisms to the total dissipation budget. Particularly, three fractions of the total dissipation budget related to damage, plastic volumetric and shear dissipations are introduced to control the constitutive behaviour through the evolution of damage variable and plastic strains, respectively. The examples provided show the performance and promising features of the proposed framework.
dc.description.statementofresponsibilityNhan T. Nguyen, Giang D. Nguyen, Murat Karakus, Ha H. Bui, Dat G. Phan
dc.identifier.citationInternational Journal of Plasticity, 2025; 184:104196-1-104196-28
dc.identifier.doi10.1016/j.ijplas.2024.104196
dc.identifier.issn0749-6419
dc.identifier.issn0749-6419
dc.identifier.orcidNguyen, N.T. [0000-0003-4174-1801]
dc.identifier.orcidKarakus, M. [0000-0001-6701-1888]
dc.identifier.orcidPhan, D.G. [0000-0002-9569-8282]
dc.identifier.urihttps://hdl.handle.net/2440/144367
dc.language.isoen
dc.publisherElsevier
dc.relation.granthttp://purl.org/au-research/grants/arc/LP200100038
dc.relation.granthttp://purl.org/au-research/grants/arc/DP240101206
dc.rights© 2024 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
dc.source.urihttps://doi.org/10.1016/j.ijplas.2024.104196
dc.subjectRocks; Constitutive modelling; Thermodynamics; Dissipation; Damage mechanics; Plasticity theory
dc.titleControlling behaviour of constitutive models for rocks using energy dissipations
dc.typeJournal article
pubs.publication-statusPublished

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