Publication:
Dynamic shear instabilities in metallic sheets subjected to shear-compression loading

dc.affiliation.dptoUC3M. Departamento de Mecánica de Medios Continuos y Teoría de Estructurases
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Dinámica y Fractura de Elementos Estructuraleses
dc.contributor.authorRodríguez-Martínez, José A.
dc.contributor.authorVaz-Romero, Álvaro
dc.contributor.authorN Souglo, Komi Espoir
dc.contributor.authorVadillo, Guadalupe
dc.contributor.funderEuropean Commissionen
dc.date.accessioned2020-10-26T13:30:52Z
dc.date.available2022-11-01T00:00:07Z
dc.date.issued2020-11
dc.description.abstractThis paper presents an investigation on the formation of adiabatic shear bands in metallic sheets subjected to dynamic shear-compression loading under plane-stress conditions. For that purpose, we have developed a theoretical model based on perturbation analysis, and have performed finite element calculations. The material behavior has been modeled with von Mises plasticity, and the evolution of the yield stress has been considered dependent on plastic strain, plastic strain rate, and temperature. The theoretical model extends the linear stability analysis for simple-shear formulated by Molinari (1997) to shear-compression loading. The numerical simulations have been performed in ABAQUS/Explicit (2016) using a unit-cell model based on the work of Rodríguez-Martínez et al. (2015) in which the shear band formation is favored introducing geometric and material imperfections. Moreover, we have developed a calibration procedure for the stability analysis that enables to make qualitative and quantitative comparisons with the finite element calculations. Both stability analysis predictions and finite element results display the same overall trends, and show that any small negative triaxiality has a profound stabilizing effect on the material behavior delaying, or even preventing, the formation of a shear band. This key outcome has been substantiated for a wide range of strain rates and for materials with different strain hardening coefficients, strain rate sensitivities, and thermal softening behaviors.en
dc.description.sponsorshipThe research leading to these results has received funding from the European Union’s Horizon2020 Programme (Excellent Science, Marie-Sklodowska-Curie Actions) under REA grant agreement 777896 (Project QUANTIFY).en
dc.format.extent24es
dc.identifier.bibliographicCitationJournal of the Mechanics and Physics of Solids, 144, Nov. 2020, 104108, 24 pp.en
dc.identifier.doihttps://doi.org/10.1016/j.jmps.2020.104108
dc.identifier.issn0022-5096
dc.identifier.issn1873-4782 (online)
dc.identifier.publicationfirstpage1es
dc.identifier.publicationlastpage24es
dc.identifier.publicationtitleJOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDSen
dc.identifier.publicationvolume144 (104108)es
dc.identifier.urihttps://hdl.handle.net/10016/31302
dc.identifier.uxxiAR/0000026119
dc.language.isoengen
dc.publisherElsevier Ltd.en
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/777896/QUANTIFYes
dc.rights©2020 Elsevier Ltd. All rights reserved.en
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.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.ecienciaIngeniería Mecánicaes
dc.subject.otherShear-compression loadingen
dc.subject.otherAdiabatic shear bandsen
dc.subject.otherInertiaen
dc.subject.otherLinear stability analysisen
dc.subject.otherFinite element calculationsen
dc.titleDynamic shear instabilities in metallic sheets subjected to shear-compression loadingen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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