Self-stimulating sandwich structure with resistive heating honeycomb core for quick thermographic inspection

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dc.contributor.authorTříska, Václavcs
dc.contributor.authorHnidka, Jakubcs
dc.contributor.authorRozehnal, Daliborcs
dc.coverage.issue8cs
dc.coverage.volume10cs
dc.date.issued2023-08-01cs
dc.description.abstractThe paper presents the novel concept of a honeycomb sandwich structure with carbon fibre reinforced plastics face sheets capable of its own internal thermal stimulation for rapid active thermographic inspection, where an adapted electrically powered honeycomb core serves as a heat source. The proposed sandwich structure effectively reduces the equipment necessary for external thermal stimulation, while improving the controllability of the thermal pulse. A new design of the modified aluminum honeycomb core, required for resistance heating with sufficient homogeneity, is proposed. Numerical modeling was used to test the concept's viability and to predict its efficiency for defect detection. The altered honeycomb was then manufactured and its heating characteristics were measured. This structure was then used as a core in a sandwich specimen with carbon fibre reinforced plastics face sheets, which also contained artificial defects embedded in the face sheets and in the face sheet/core interface. The applicability of the proposed modified honeycomb structure for thermal stimulation for active infrared thermography was experimentally confirmed, demonstrating the ability to visualize even very small defects simulating disbonding, or delamination. The impact of water ingress on the operation of the concept was tested as well. The proposed method has the potential to simplify and expedite the non-destructive inspection of aviation-grade sandwich structures in service via active infrared thermography.en
dc.formattextcs
dc.format.extent1-16cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMaterials Research Express. 2023, vol. 10, issue 8, p. 1-16.en
dc.identifier.doi10.1088/2053-1591/ace237cs
dc.identifier.issn2053-1591cs
dc.identifier.orcid0000-0003-1712-079Xcs
dc.identifier.other184655cs
dc.identifier.urihttp://hdl.handle.net/11012/245023
dc.language.isoencs
dc.publisherIOP Publishingcs
dc.relation.ispartofMaterials Research Expresscs
dc.relation.urihttps://iopscience.iop.org/article/10.1088/2053-1591/ace237cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2053-1591/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectnon-destructive inspectionen
dc.subjecthoneycomb sandwichen
dc.subjectaerospaceen
dc.subjectresistive coreen
dc.subjectactive infrared thermographyen
dc.titleSelf-stimulating sandwich structure with resistive heating honeycomb core for quick thermographic inspectionen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-184655en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:50:43en
sync.item.modts2025.01.17 18:40:56en
thesis.grantorVysoké učení technické v Brně. . Univerzita obranycs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Kybernetika a robotikacs
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