Application of modal-based damage-detection method to locate and evaluate damage in timber beams

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dc.contributor.author Choi, FC
dc.contributor.author Li, J
dc.contributor.author Samali, B
dc.contributor.author Crews, K
dc.date.accessioned 2009-12-21T03:53:07Z
dc.date.issued 2007-10
dc.identifier.citation Journal of Wood Science, 2007, 53 (5), pp. 394 - 400
dc.identifier.issn 1435-0211
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/5856
dc.description.abstract Modal-based damage-detection algorithms were used to identify the location of defects commonly found in timber and to estimate their severities. In this study, the authors propose modifications to an existing damage-detection algorithm for locating and evaluating damage by comparing the modal strain energy before and after damage using the first two flexural modes of vibration. Experimental verification was performed on pin-pin supported timber beams by employing the algorithms with extracted modal parameters using experimental modal analysis. Single and multiple cases of damage used to simulate pocket(s) of rot with various severities were inflicted by removing sections of timber beam specimens. The proposed damage indicator, computed from the first two flexural modes, was capable of detecting all damage locations. It was also able to estimate, with reasonable accuracy, the severity of damage in term of loss of sectional moment of inertia. The modified damage index method is generally reliable in detecting the location and estimating the severity of simulated defects in timber beams. © 2007 The Japan Wood Research Society.
dc.language eng
dc.relation.hasversion Accepted manuscript version
dc.relation.isbasedon 10.1007/s10086-006-0881-5
dc.title Application of modal-based damage-detection method to locate and evaluate damage in timber beams
dc.type Journal Article
dc.parent Journal of Wood Science
dc.journal.volume 5
dc.journal.volume 53
dc.journal.number 5 en_US
dc.publocation Tokyo en_US
dc.identifier.startpage 394 en_US
dc.identifier.endpage 400 en_US
dc.cauo.name FEIT.School of Civil and Environmental Engineering en_US
dc.conference Verified OK en_US
dc.for 0705 Forestry Sciences
dc.personcode 930410
dc.personcode 930859
dc.personcode 044012
dc.personcode 870186
dc.percentage 100 en_US
dc.classification.name Forestry Sciences en_US
dc.classification.type FOR-08 en_US
dc.location.activity ISI:000250133800005 en_US
dc.description.keywords Damage localization
dc.description.keywords Experimental modal analysis
dc.description.keywords Modified damage index
dc.description.keywords Severity estimation
dc.description.keywords Timber
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group /University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group /University of Technology Sydney/Faculty of Engineering and Information Technology/School of Elec, Mech and Mechatronic Systems
pubs.organisational-group /University of Technology Sydney/Strength - Built Infrastructure
utslib.copyright.status Open Access
utslib.copyright.date 2015-04-15 12:23:47.074767+10
pubs.consider-herdc true
utslib.collection.history General (ID: 2)


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