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dc.contributor.authorGHRIB, Meriem
dc.contributor.authorBERTHE, Laurent
dc.contributor.authorREBILLAT, Marc
dc.contributor.author
 hal.structure.identifier
ECAULT, Romain
244009 Airbus Group Innovations [Suresnes]
dc.contributor.author
 hal.structure.identifier
BEDREDDINE, Nas
300457 SAFRAN Group
dc.contributor.author
 hal.structure.identifier
MECHBAL, Nazih
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
dc.contributor.authorGUSKOV, Mikhail
dc.date.accessioned2017
dc.date.available2018
dc.date.issued2017
dc.date.submitted2017
dc.identifier.issn0263-8223
dc.identifier.urihttp://hdl.handle.net/10985/11734
dc.description.abstractStructural Health Monitoring (SHM) is defined as the process of implementing a damage identification strategy for aerospace, civil and mechanical engineering infrastructures. SHM can be organized into five main steps: detection, localization, classification, quantification and prognosis. Our work considers SHM quantification level and in particular the evaluation of the severity of delamination-type damage in CFRP composite laminates. Prior to quantification algorithms implementation, it is important to properly prepare the supports on which algorithms will be tested. Teflon inserts and conventional impacts are commonly used techniques to generate or simulate delaminations. However, with such rudimentary techniques it is difficult to generate controlled delamination-type damage in a realistic way. In the present work, we investigate symmetrical laser shock approach, as a new method to calibrate delaminations in composites. By tuning the time delay between the two laser beams and laser energy, through-thickness damage position and severity can respectively be adjusted. The effect of multiple contiguous laser impacts was also investigated. Post-mortem analyses using A-scan and C-scan testing as well as penetrant testing were performed in order to characterize laser impact induced damage. Results are encouraging and demonstrate the high potential of symmetrical laser shock for damage calibration in both size and location.
dc.language.isoen
dc.publisherElsevier
dc.rightsPost-print
dc.subject• SHM; • CFRP composite laminates; • Delamination; • Quantification algorithms; • Damage calibration; • Symmetrical laser shock; • Post mortem analyses
dc.titleGeneration of controlled delaminations in composites using symmetrical laser shock configuration
ensam.embargo.terms2018-01-01
dc.identifier.doi10.1016/j.compstruct.2017.03.039
dc.typdocArticle dans une revue avec comité de lecture
dc.localisationCentre de Paris
dc.subject.halSciences de l'ingénieur: Matériaux
dc.subject.halSciences de l'ingénieur: Mécanique
ensam.audienceInternationale
ensam.page286–297
ensam.journalComposite Structures
ensam.volume171
ensam.peerReviewingOui
hal.identifierhal-01662852
hal.version1
hal.statusaccept


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