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High-velocity impact fragmentation of additively-manufactured metallic tubes

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dc.affiliation.dptoUC3M. Departamento de Mecánica de Medios Continuos y Teoría de Estructurases
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Nonlinear Solid Mechanicses
dc.contributor.authorNieto Fuentes, Juan Carlos
dc.contributor.authorEspinoza, J.
dc.contributor.authorSket, F.
dc.contributor.authorRodrÍguez MartÍnez, José Antonio
dc.contributor.funderEuropean Commissionen
dc.contributor.funderUniversidad Carlos III de Madrides
dc.date.accessioned2023-12-15T11:24:18Z
dc.date.available2023-12-15T11:24:18Z
dc.date.issued2023-05-01
dc.description.abstractIn this paper, we have developed and demonstrated a novel high-velocity impact experiment to study dynamic fragmentation of additively-manufactured metals. The experiment consists of a light-gas gun that fires a conical nosed cylindrical projectile, that impacts axially on a thin-walled cylindrical tube fabricated by 3D printing. The diameter of the cylindrical part of the projectile is approximately twice greater than the inner diameter of the cylindrical target, which is expanded as the projectile moves forward, and eventually breaks into fragments. The experiments have been performed for impact velocities ranging from ≈ 180 m∕s to ≈ 390 m∕s, leading to strain rates in the cylindrical target that vary between ≈ 9000 s-1 and ≈ 23500 s−1. The cylindrical samples tested are printed by Selective Laser Melting out of aluminum alloy AlSi10Mg, using two printing qualities, with two different outer diameters, 12 mm and 14 mm, and two different wall thicknesses, 1 mm and 2 mm. A salient feature of this work is that we have characterized by X-ray tomography the porous microstructure of selected specimens before testing. Three-dimensional analysis of the tomograms has shown that the initial void volume fraction of the printed cylinders varies between 1.9% and 6.1%, and the maximum equivalent diameter of the 10 largest pores ranges from 143 μm to 216 μm, for the two different printing conditions. Two high-speed cameras have been used to film the experiments and thus to obtain time-resolved information on the mechanics of formation and propagation of fractures. Moreover, fragments ejected from the samples have been recovered, sized, weighted and analyzed using X-ray tomography, so that we have obtained indications on the effect of porous microstructure, specimen dimensions and loading velocity on the number and distribution of fragment sizes. To the authors’ knowledge, this is the first paper (i) providing a systematic experimental study (34 impact tests) on the fragmentation behavior of printed specimens, and (ii) including 3D reconstructions of dynamic cracks in porous additively-manufactured materials.en
dc.description.sponsorshipThe research leading to these results has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (Project PURPOSE), grant agreement No. 758056. J.C. Nieto-Fuentes acknowledges support from the CONEX-Plus programme funded by Universidad Carlos III de Madrid and the European Union’s Horizon 2020 research and innovation programme , under the Marie Sklodowska-Curie grant agreement No. 801538.en
dc.format.extent39es
dc.identifier.bibliographicCitationNieto-Fuentes, J. C., Espinoza, J., Sket, F., & Rodríguez-Martínez, J. A. (2023). High-velocity impact fragmentation of additively-manufactured metallic tubes. Journal of the Mechanics and Physics of Solids, 174(105248)en
dc.identifier.doihttps://doi.org/10.1016/j.jmps.2023.105248
dc.identifier.issn0022-5096
dc.identifier.publicationfirstpage1es
dc.identifier.publicationlastpage39es
dc.identifier.publicationtitleJournal of the Mechanics and Physics of Solidsen
dc.identifier.publicationvolume174es
dc.identifier.urihttps://hdl.handle.net/10016/39096
dc.identifier.uxxiAR/0000033544
dc.language.isoengen
dc.publisherElsevieren
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/758056/PURPOSEen
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/801538/CONEX-Plusen
dc.rights© 2023 The Author(s). Published by Elsevier Ltd.en
dc.rightsThis is an open access article under the CC BY license.en
dc.rightsAtribución 3.0 España*
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/*
dc.subject.ecienciaIngeniería Mecánicaes
dc.subject.ecienciaMaterialeses
dc.subject.otherAdditively-manufactured metalsen
dc.subject.otherAxial penetrationen
dc.subject.otherFragmentationen
dc.subject.otherHigh-velocity impacten
dc.subject.otherX-ray tomographyen
dc.titleHigh-velocity impact fragmentation of additively-manufactured metallic tubesen
dc.typeresearch article*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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