Please use this identifier to cite or link to this item: https://doi.org/10.1007/s003660200010
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dc.titleAn inverse procedure for crack detection in anisotropic laminated plates using elastic waves
dc.contributor.authorWu, Z.P.
dc.contributor.authorLiu, G.R.
dc.contributor.authorHan, X.
dc.date.accessioned2014-06-17T06:12:04Z
dc.date.available2014-06-17T06:12:04Z
dc.date.issued2002
dc.identifier.citationWu, Z.P., Liu, G.R., Han, X. (2002). An inverse procedure for crack detection in anisotropic laminated plates using elastic waves. Engineering with Computers 18 (2) : 116-123. ScholarBank@NUS Repository. https://doi.org/10.1007/s003660200010
dc.identifier.issn01770667
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/59491
dc.description.abstractThis paper presents a computational inverse technique to detect the location and length of cracks in anisotropic laminated plates. The scattered elastic harmonic wave fields in the laminated plates with horizontal or vertical crack are calculated using the strip element method, whereby the anisotropic laminated plate is discretized into strip elements in the thickness direction. By applying the principle of virtual work, the governing differential equations of the wave propagation are derived for the field variables. These differential equations are solved analytically together with the vertical boundary conditions. The crack length and its location are then identified by minimizing an error function, which is defined as the difference between the scattered wave fields in plates with actual and searched parameters. A uniform micro-genetic algorithm is employed to search for the correct parameters that minimize the error function. Numerical examples are given to demonstrate the efficiency of the procedure in the detection of the location and the length of both horizontal and vertical cracks in composite laminates.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1007/s003660200010
dc.sourceScopus
dc.subjectComposite
dc.subjectCrack detection
dc.subjectElastic wave
dc.subjectGenetic algorithm
dc.subjectInverse problems
dc.subjectLaminates
dc.typeArticle
dc.contributor.departmentMECHANICAL ENGINEERING
dc.description.doi10.1007/s003660200010
dc.description.sourcetitleEngineering with Computers
dc.description.volume18
dc.description.issue2
dc.description.page116-123
dc.description.codenENGCE
dc.identifier.isiut000178153500003
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