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dc.contributor.authorLi, Dong-Feng
dc.contributor.authorBarrett, Richard A.
dc.contributor.authorO'Donoghue, Padraic E.
dc.contributor.authorO'Dowd, Noel P.
dc.contributor.authorLeen, Sean B.
dc.date.accessioned2019-12-13T11:21:12Z
dc.date.available2019-12-13T11:21:12Z
dc.date.issued2016-12-24
dc.identifier.citationLi, Dong-Feng, Barrett, Richard A., O'Donoghue, Padraic E., O'Dowd, Noel P., & Leen, Sean B. (2017). A multi-scale crystal plasticity model for cyclic plasticity and low-cycle fatigue in a precipitate-strengthened steel at elevated temperature. Journal of the Mechanics and Physics of Solids, 101, 44-62. doi: https://doi.org/10.1016/j.jmps.2016.12.010en_IE
dc.identifier.issn0022-5096
dc.identifier.urihttp://hdl.handle.net/10379/15642
dc.description.abstractIn this paper, a multi-scale crystal plasticity model is presented for cyclic plasticity and low-cycle fatigue in a tempered martensite ferritic steel at elevated temperature. The model explicitly represents the geometry of grains, sub-grains and precipitates in the material, with strain gradient effects and kinematic hardening included in the crystal plasticity formulation. With the multiscale model, the cyclic behaviour at the sub-grain level is predicted with the effect of lath and precipitate sizes examined. A crystallographic, accumulated slip (strain) parameter, modulated by triaxiality, is implemented at the micro scale, to predict crack initiation in precipitate-strengthened laths. The predicted numbers of cycles to crack initiation agree well with experimental data. A strong dependence on the precipitate size is demonstrated, indicating a detrimental effect of coarsening of precipitates on fatigue at elevated temperature. (C) 2016 Elsevier Ltd. All rights reserved.en_IE
dc.description.sponsorshipThis publication has emanated from research conducted with the financial support of Science Foundation Ireland under grant numbers SFI/10/IN.1/I3015 and SFI/14/1A/2604. Dong-Feng Li acknowledges the Shenzhen Municipal Science and Technology Innovation Council for the support under Grant JCYJ20160608161000821. The modelling work was supported by the Irish Center for High-End Computing (ICHEC) and National Supercomputer Center in Guangzhou, China. Helpful discussions with Dr. Peter Tiernan, Mr. Brian Golden and Dr. Yina Guo of the Materials and Surface Science Institute (MSSI) at University of Limerick, Ireland; Ms. Eimear O'Hara of National University of Ireland, Galway; and Mr. Stephen Scully of Electricity Supply Boad (ESB International), Ireland are gratefully acknowledged.en_IE
dc.formatapplication/pdfen_IE
dc.language.isoenen_IE
dc.publisherElsevieren_IE
dc.relation.ispartofJournal Of The Mechanics And Physics Of Solidsen
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Ireland
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/3.0/ie/
dc.subjectTempered martensite ferritic steelsen_IE
dc.subjectStrain gradient-based crystal plasticityen_IE
dc.subjectCyclic softening fatigueen_IE
dc.subjectFinite elementen_IE
dc.subjectCrack initiationen_IE
dc.subjectCRACK NUCLEATIONen_IE
dc.subjectSTRESS TRIAXIALITYen_IE
dc.subjectMARTENSITIC STEELen_IE
dc.subjectLENGTH-SCALEen_IE
dc.subjectDEFORMATIONen_IE
dc.subjectSLIPen_IE
dc.subjectEVOLUTIONen_IE
dc.subjectBEHAVIORen_IE
dc.subjectGRAINen_IE
dc.subjectLIFEen_IE
dc.titleA multi-scale crystal plasticity model for cyclic plasticity and low-cycle fatigue in a precipitate-strengthened steel at elevated temperatureen_IE
dc.typeArticleen_IE
dc.date.updated2019-12-13T09:57:29Z
dc.identifier.doi10.1016/j.jmps.2016.12.010
dc.local.publishedsourcehttps://doi.org/10.1016/j.jmps.2016.12.010en_IE
dc.description.peer-reviewedpeer-reviewed
dc.contributor.funderScience Foundation Irelanden_IE
dc.internal.rssid12550005
dc.local.contactSean Leen, Mechanical & Biomedical Eng, Eng-2051, New Engineering Building, Nui Galway. 5955 Email: sean.leen@nuigalway.ie
dc.local.copyrightcheckedYes
dc.local.versionACCEPTED
dcterms.projectinfo:eu-repo/grantAgreement/SFI/SFI Principal Investigator Programme (PI)/10/IN.1/I3015/IE/Materials for Energy: Multiscale Thermomechanical Characterisation of Advanced high temperature Materials for Power generation (METCAMP)/en_IE
dcterms.projectinfo:eu-repo/grantAgreement/SFI/SFI Investigator Programme/14/IA/2604/IE/Multi-scale, Through-process Chracterisation for Innovative Manufacture of Next-generation Welded Connections (MECHANNICS)/en_IE
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