Publication:
Modelling of carbon/epoxy sandwich panels with agglomerated cork core subjected to impact loads

dc.affiliation.dptoUC3M. Departamento de Mecánica de Medios Continuos y Teoría de Estructurases
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Mecánica de Materiales Avanzadoses
dc.contributor.authorGómez Meisel, Edgar Arturo
dc.contributor.authorBarbero Pozuelo, Enrique
dc.contributor.authorSánchez Sáez, Sonia
dc.contributor.funderMinisterio de Economía y Competitividad (España)es
dc.date.accessioned2022-01-24T09:56:08Z
dc.date.available2022-01-24T09:56:08Z
dc.date.issued2022-01
dc.description.abstractThis work studies the behaviour of sandwich panels made of woven carbon/epoxy face-sheets and agglomerated cork as core material subjected to impacts at intermediate velocities, below the perforation velocity of the panel. Agglomerated cork was selected as an eco-friendly alternative to traditional synthetic polymeric foams. A nonlinear/explicit finite element model was implemented to study the problem. Continuous damage models were used to predict the intra-laminar and inter-laminar damage evolution in the face-sheets. The core behaviour was modelled through a hyperelastic elastomeric foam model with multiaxial failure criteria. The numerical model was validated in two phases. First, the numerical models of face-sheet and core were validated with experimental data from the open literature. Second, the precision of the model of the complete sandwich is assessed with experimental tests carried out in this work. Two cases were studied one when the projectile does not perforate the front face-sheet and another when the projectile does not perforate the back face-sheet. Results show that the numerical model accurately predicts transverse displacements when compared to DIC measurements. Additionally, the model can predict the panel's penetration when comparing with real specimens. Finally, the model provides the damage evolution and the evolution of the different energy absorption mechanisms during the perforation process, something that is not possible to obtain experimentally and provides a valuable tool to understand the phenomenon.en
dc.description.sponsorshipThis research was financially supported by the project DPI2017-86324-R of the Ministerio de Economía y Competitividad de España.en
dc.format.extent15
dc.identifier.bibliographicCitationGomez, A., Barbero, E. & Sanchez-Saez, S. (2022). Modelling of carbon/epoxy sandwich panels with agglomerated cork core subjected to impact loads. International Journal of Impact Engineering, 159, 104047.en
dc.identifier.doihttps://doi.org/10.1016/j.ijimpeng.2021.104047
dc.identifier.issn0734-743X
dc.identifier.publicationfirstpage1
dc.identifier.publicationissue104047
dc.identifier.publicationlastpage15
dc.identifier.publicationtitleInternational Journal of Impact Engineeringen
dc.identifier.publicationvolume159
dc.identifier.urihttps://hdl.handle.net/10016/33941
dc.identifier.uxxiAR/0000028989
dc.language.isoengen
dc.publisherElsevieren
dc.relation.projectIDGobierno de España. DPI2017-86324-Res
dc.relation.projectIDAT-2021
dc.rights© 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND 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.ecienciaMaterialeses
dc.subject.otherSandwich panelen
dc.subject.otherImpact behaviouren
dc.subject.otherFinite element analysis (FEA)en
dc.subject.otherNumerical analysisen
dc.subject.otherCarbon fibreen
dc.subject.otherContinuum damage modelen
dc.titleModelling of carbon/epoxy sandwich panels with agglomerated cork core subjected to impact loadsen
dc.typeresearch article*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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