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Influence of stacking sequence on scattering characteristics of the fundamental anti-symmetric Lamb wave at through holes in composite laminates

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dc.contributor.authorVeidt, M.
dc.contributor.authorNg, C.
dc.date.issued2011
dc.description.abstractThis paper investigates the scattering characteristics of the fundamental anti-symmetric (A(0)) Lamb wave at through holes in composite laminates. Three-dimensional (3D) finite element (FE) simulations and experimental measurements are used to study the physical phenomenon. Unidirectional, bidirectional, and quasi-isotropic composite laminates are considered in the study. The influence of different hole diameter to wavelength aspect ratios and different stacking sequences on wave scattering characteristics are investigated. The results show that amplitudes and directivity distribution of the scattered Lamb wave depend on these parameters. In the case of quasi-isotropic composite laminates, the scattering directivity patterns are dominated by the fiber orientation of the outer layers and are quite different for composite laminates with the same number of laminae but different stacking sequence. The study provides improved physical insight into the scattering phenomena at through holes in composite laminates, which is essential to develop, validate, and optimize guided wave damage detection and characterization techniques.
dc.description.statementofresponsibilityMartin Veidt and Ching-Tai Ng
dc.identifier.citationJournal of the Acoustical Society of America, 2011; 129(3):1280-1287
dc.identifier.doi10.1121/1.3533742
dc.identifier.issn0001-4966
dc.identifier.issn1520-8524
dc.identifier.urihttp://hdl.handle.net/2440/73058
dc.language.isoen
dc.publisherAcoustical Soc Amer Amer Inst Physics
dc.relation.granthttp://purl.org/au-research/grants/arc/DP0771585
dc.relation.granthttp://purl.org/au-research/grants/arc/DP0771585
dc.relation.isreplacedby2440/97869
dc.relation.isreplacedbyhttp://hdl.handle.net/2440/97869
dc.rights© 2011 Acoustical Society of America
dc.source.urihttps://doi.org/10.1121/1.3533742
dc.subjectEpoxy Compounds
dc.subjectReproducibility of Results
dc.subjectFinite Element Analysis
dc.subjectAcoustics
dc.subjectPorosity
dc.subjectScattering, Radiation
dc.subjectModels, Theoretical
dc.subjectTime Factors
dc.subjectComputer Simulation
dc.subjectNumerical Analysis, Computer-Assisted
dc.titleInfluence of stacking sequence on scattering characteristics of the fundamental anti-symmetric Lamb wave at through holes in composite laminates
dc.typeJournal article
pubs.publication-statusPublished

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