Publication:
The effect of initial texture on multiple necking formation in polycrystalline thin rings subjected to dynamic expansion

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dc.affiliation.dptoUC3M. Departamento de Mecánica de Medios Continuos y Teoría de Estructurases
dc.contributor.authorN Souglo, Komi Espoir
dc.contributor.authorKowalczyk Gajewska, Katarzyna
dc.contributor.authorMarvi Mashhadi, Mohammad
dc.contributor.authorRodríguez Martínez, Guillermo
dc.contributor.funderEuropean Commissionen
dc.date.accessioned2023-12-05T10:41:22Z
dc.date.available2023-12-05T10:41:22Z
dc.date.issued2023-06-01
dc.description.abstractIn this paper, we have investigated, using finite element calculations, the effect of initial texture on the formation of multiple necking patterns in ductile metallic rings subjected to rapid radial expansion. The mechanical behavior of the material has been modeled with the elasto-viscoplastic single crystal constitutive model developed by Marin (2006). The polycrystalline microstructure of the ring has been generated using random Voronoi seeds. Both 5000 grain and 15000 grain aggregates have been investigated, and for each polycrystalline aggregate three different spatial distributions of grains have been considered. The calculations have been performed within a wide range of strain rates varying from to , and the rings have been modeled with four different initial textures: isotropic texture, Goss texture, R Goss texture and Z fiber texture. The finite element results show that: (i) the spatial distribution of grains affects the location of the necks, (ii) the decrease of the grain size delays the formation of the necking pattern and increases the number of necks, (iii) the initial texture affects the number of necks, the location of the necks, and the necking time, (iv) the development of the necks is accompanied by a local increase of the slip activity. This work provides new insights into the effect of crystallographic microstructure on dynamic plastic localization and guidelines to tailor the initial texture in order to delay dynamic necking formation and, thus, to improve the energy absorption capacity of ductile metallic materials at high strain rates.en
dc.description.sponsorshipThis work has received funding from the European Union's Horizon 2020 Programme (Excellent Science, Marie-Skłodowska-Curie Actions) under REA grant agreement 777896 (Project QUANTIFY). The support of National Science Centre, Poland , through the project 2021/41/B/ST8/03345 is acknowledged.en
dc.description.statusPublicado
dc.format.extent18
dc.identifier.bibliographicCitationMechanics of Materials, (2023), v. 181:104616, pp.: 1-18.en
dc.identifier.doihttps://doi.org/10.1016/j.mechmat.2023.104616
dc.identifier.issn0167-6636
dc.identifier.publicationfirstpage1
dc.identifier.publicationlastpage18
dc.identifier.publicationtitleMECHANICS OF MATERIALSen
dc.identifier.publicationvolume181,104616
dc.identifier.urihttps://hdl.handle.net/10016/39042
dc.identifier.uxxiAR/0000033582
dc.language.isoengen
dc.publisherElsevier
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/777896en
dc.rights© 2023 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/)en
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaMaterialeses
dc.subject.otherDynamic neckingen
dc.subject.otherInertiaen
dc.subject.otherCrystal plasticityen
dc.subject.otherTextureen
dc.subject.otherFinite elementsen
dc.titleThe effect of initial texture on multiple necking formation in polycrystalline thin rings subjected to dynamic expansionen
dc.typeresearch article*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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