The acousticemission(AE)isapowerfulandpotentialnondestructivetestingmethodfor structuralmonitoringincivilengineering.Here,weshowhowsystematicinvestigationof crack phenomenabasedonAEdatacanbesignificantly improvedbytheuseofadvanced signalprocessingtechniques.Suchdataareafundamentalsourceofinformationthatcan be usedasthebasisforevaluatingthestatusofthematerial,therebypavingthewayfora new frontierofinnovationmadebydata-enabledanalytics.Inthisarticle,weproposea frameworkbasedontheHilbert–Huang Transformfortheevaluationofmaterialdamages that (i)facilitatesthesystematicemploymentofbothestablishedandpromisinganalysis criteria, and(ii)providesunsupervisedtoolstoachieveanaccurateclassificationofthe fracture type,thediscriminationbetweenlongitudinal(P-) andtraversal(S-) waves relatedtoanAEevent.Theexperimentalvalidationshowspromisingresultsforareliable assessmentofthehealthstatusthroughthemonitoringofcivilinfrastructures.
A framework for the damage evaluation of acoustic emission signals through Hilbert-Huang transform
SIRACUSANO, GIULIO
Primo
;GARESCI', Francesca;FINOCCHIO, GiovanniUltimo
2016-01-01
Abstract
The acousticemission(AE)isapowerfulandpotentialnondestructivetestingmethodfor structuralmonitoringincivilengineering.Here,weshowhowsystematicinvestigationof crack phenomenabasedonAEdatacanbesignificantly improvedbytheuseofadvanced signalprocessingtechniques.Suchdataareafundamentalsourceofinformationthatcan be usedasthebasisforevaluatingthestatusofthematerial,therebypavingthewayfora new frontierofinnovationmadebydata-enabledanalytics.Inthisarticle,weproposea frameworkbasedontheHilbert–Huang Transformfortheevaluationofmaterialdamages that (i)facilitatesthesystematicemploymentofbothestablishedandpromisinganalysis criteria, and(ii)providesunsupervisedtoolstoachieveanaccurateclassificationofthe fracture type,thediscriminationbetweenlongitudinal(P-) andtraversal(S-) waves relatedtoanAEevent.Theexperimentalvalidationshowspromisingresultsforareliable assessmentofthehealthstatusthroughthemonitoringofcivilinfrastructures.| File | Dimensione | Formato | |
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Siracusano (MSS 2016) - A framework for the damage evaluation of acoustic emission.pdf
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