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

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Show simple item record Gómez Meisel, Edgar Arturo Barbero Pozuelo, Enrique Sánchez Sáez, Sonia 2022-01-24T09:56:08Z 2022-01-24T09:56:08Z 2022-01
dc.identifier.bibliographicCitation Gomez, 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.
dc.identifier.issn 0734-743X
dc.description.abstract This 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.
dc.description.sponsorship This research was financially supported by the project DPI2017-86324-R of the Ministerio de Economía y Competitividad de España.
dc.format.extent 15
dc.language.iso eng
dc.publisher Elsevier
dc.rights © 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license.
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.subject.other Sandwich panel
dc.subject.other Impact behaviour
dc.subject.other Finite element analysis (FEA)
dc.subject.other Numerical analysis
dc.subject.other Carbon fibre
dc.subject.other Continuum damage model
dc.title Modelling of carbon/epoxy sandwich panels with agglomerated cork core subjected to impact loads
dc.type research article
dc.subject.eciencia Ingeniería Mecánica
dc.subject.eciencia Materiales
dc.rights.accessRights open access
dc.relation.projectID Gobierno de España. DPI2017-86324-R
dc.relation.projectID AT-2021
dc.identifier.publicationfirstpage 1
dc.identifier.publicationissue 104047
dc.identifier.publicationlastpage 15
dc.identifier.publicationtitle International Journal of Impact Engineering
dc.identifier.publicationvolume 159
dc.identifier.uxxi AR/0000028989
dc.contributor.funder Ministerio de Economía y Competitividad (España)
dc.affiliation.dpto UC3M. Departamento de Mecánica de Medios Continuos y Teoría de Estructuras
dc.affiliation.grupoinv UC3M. Grupo de Investigación: Mecánica de Materiales Avanzados
dc.type.hasVersion VoR
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