A bridge-vehicle interaction based experimental investigation of damage evolution

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dc.contributor.author Pakrashi, Vikram
dc.contributor.author O'Connor, Alan J.
dc.contributor.author Basu, Biswajit
dc.date.accessioned 2011-04-21T11:02:27Z
dc.date.available 2011-04-21T11:02:27Z
dc.date.issued 2010-07
dc.identifier.citation Pakrashi, V., O'Connor A.J., Basu B., 2010. A bridge-vehicle interaction based experimental investigation of damage evolution. Structural Health Monitoring, 9 (4):285-296. en
dc.identifier.volume 9 en
dc.identifier.issued 4 en
dc.identifier.startpage 285 en
dc.identifier.endpage 296 en
dc.identifier.issn 1475-9217
dc.identifier.issn 1741-3168
dc.identifier.uri http://hdl.handle.net/10468/292
dc.identifier.doi 10.1177/1475921709352147
dc.description.abstract This article presents an experimental monitoring of the evolution of a crack in a beam using beam-vehicle interaction response signals for identification of progressively increasing crack-depth ratios. The beam is traversed by a two-axle model vehicle providing excitation in the time domain for the various extents of damage. The response of the beam in the time domain during the period of forced vibration is measured using strain gages. A consistent evolution of damage has been demonstrated in terms of the maxima values of the measured responses. The corresponding distortions of wavelet coefficients of the measured strain data due to the presence of various levels of damage have been identified. The evolution of the phase space and the wavelet transformed phase spaces have been evaluated with damage evolution. The wavelet transformed phase spaces for the undamaged and the damaged cases are observed to be distinctly different at high scales. The importance of denoising of the acquired data and the importance of vehicle configuration has been illustrated. This study presents a basis for a general model free damage assessment and structural health monitoring framework. The study presented is particularly useful in the context of continuous online bridge health monitoring, since the data necessary for analysis can be obtained from the operating condition of the bridge and the structure does not need be closed down. en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Sage Publications en
dc.relation.uri http://shm.sagepub.com/content/9/4/285.abstract?rss=1
dc.rights © The Author(s), 2010. Reprints and permissions: http://www.sagepub.co.uk/journalsPermissions.nav en
dc.rights.uri http://www.sagepub.co.uk/journalsPermissions.nav en
dc.subject Wavelet coefficient maps en
dc.subject Distorted ridges and skeletons en
dc.subject Wavelet transformed phase space en
dc.subject Damage evolution en
dc.subject Bridge-vehicle interaction en
dc.subject.lcsh Bridges--Testing en
dc.subject.lcsh Structural health monitoring en
dc.title A bridge-vehicle interaction based experimental investigation of damage evolution en
dc.type Article (peer-reviewed) en
dc.internal.authorurl http://publish.ucc.ie/researchprofiles/D012/vpakrashi en
dc.internal.authorcontactother Vikram Pakrashi, Civil Engineering, University College Cork, Cork, Ireland. +353-21-490-3000 Email: v.pakrashi@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2010-10-07T14:20:25Z
dc.description.version Accepted Version en
dc.internal.rssid 52679155
dc.description.status Peer reviewed en
dc.identifier.journaltitle Structural Health Monitoring en
dc.internal.copyrightchecked RoMEo. Authors use downloaded from Sage. en
dc.internal.IRISemailaddress v.pakrashi@ucc.ie en

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