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dc.contributor.authorPineda Allen, J.C.-
dc.contributor.authorNg, C.T.-
dc.identifier.citationSensors, 2023; 23(2):1-12-
dc.description.abstractGuided waves have been extensively studied in the past few years, and more recently nonlinear guided waves have attracted significant research interest for their potential for early damage detection and material state characterization. Combined harmonic generation due to wave mixing can offer some advantages over second harmonic generation. However, studies focused on Lamb wave mixing are still very limited, and have mainly focused on collinear wave mixing and used plane wave assumption. In this paper, numerical simulations and experiments are conducted to understand the interaction of mixing non-collinear Lamb wave pulses with non-planar wavefronts. The results demonstrate that the generated secondary wave is cumulative under internal resonance conditions and the sum-frequency component of the combined harmonics is useful for characterizing material nonlinearities.-
dc.description.statementofresponsibilityJuan Carlos, Pineda Allen and Ching Tai Ng-
dc.publisherMDPI AG-
dc.rights© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// 4.0/).-
dc.subjectwave mixing; non-collinear; Lamb wave; material nonlinearity; non-planar wavefront-
dc.subject.meshNonlinear Dynamics-
dc.subject.meshComputer Simulation-
dc.titleMixing of Non-Collinear Lamb Wave Pulses in Plates with Material Nonlinearity-
dc.typeJournal article-
Appears in Collections:Civil and Environmental Engineering publications

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