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dc.contributor.authorKhadyko, Mikhail
dc.contributor.authorFrodal, Bjørn Håkon
dc.contributor.authorHopperstad, Odd Sture
dc.date.accessioned2021-07-14T07:21:53Z
dc.date.available2021-07-14T07:21:53Z
dc.date.issued2021-02-18
dc.description.abstractIn the present study, a hypoelastic–plastic formulation of porous crystal plasticity with a regularized version of Schmid’s law is proposed. The equation describing the effect of the voids on plasticity is modified to allow for an explicit analytical solution for the effective resolved shear stress. The regularized porous crystal plasticity model is implemented as a material model in a finite element code using the cutting plane algorithm. Fracture is described by element erosion at a critical porosity. The proposed model is used for two test cases of two- and three-dimensional polycrystals deformed in tension until full fracture is achieved. The simulations demonstrate the capability of the proposed model to account for the interaction between different modes of strain localization, such as shear bands and necking, and the initiation and propagation of ductile fracture in large scale polycrystal models with detailed grain description and realistic boundary conditions.en_US
dc.identifier.citationKhadyko, Frodal, Hopperstad. Finite element simulation of ductile fracture in polycrystalline materials using a regularized porous crystal plasticity model. International Journal of Fracture. 2021;228:15-31en_US
dc.identifier.cristinIDFRIDAID 1892337
dc.identifier.doi10.1007/s10704-020-00503-w
dc.identifier.issn0376-9429
dc.identifier.issn1573-2673
dc.identifier.urihttps://hdl.handle.net/10037/21875
dc.language.isoengen_US
dc.publisherSpringeren_US
dc.relation.journalInternational Journal of Fracture
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/FRINATEK/250553/Norway/Microstructure-based Modelling of Ductile Fracture in Aluminium Alloys/FractAl/en_US
dc.relation.urihttps://link.springer.com/article/10.1007%2Fs10704-020-00503-w
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2021 The Author(s)en_US
dc.subjectVDP::Technology: 500en_US
dc.subjectVDP::Teknologi: 500en_US
dc.titleFinite element simulation of ductile fracture in polycrystalline materials using a regularized porous crystal plasticity modelen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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