Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/89687
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dc.contributor.authorZuo, Pengen
dc.contributor.authorLiu, Yangen
dc.contributor.authorZhou, Yuen
dc.contributor.authorFan, Zhengen
dc.date.accessioned2018-10-15T08:23:49Zen
dc.date.accessioned2019-12-06T17:31:12Z-
dc.date.available2018-10-15T08:23:49Zen
dc.date.available2019-12-06T17:31:12Z-
dc.date.issued2018en
dc.identifier.citationZuo, P., Liu, Y., Zhou, Y., & Fan, Z. (2018). Investigation of nonlinear ultrasonic guided waves in open waveguides based on perfectly matched layers. The Journal of the Acoustical Society of America, 144(3), 1572-1588. doi:10.1121/1.5055210en
dc.identifier.issn0001-4966en
dc.identifier.urihttps://hdl.handle.net/10356/89687-
dc.description.abstractNonlinear ultrasonic guided waves have been investigated widely in closed waveguides such as plates, pipes, etc. However, the description of nonlinear ultrasonic guided waves remains challenging for open waveguides, as energy may leak into the surrounding medium. In this work, the properties of nonlinear ultrasonic guided waves in open waveguides are investigated. Mathematical framework is first established based on real reciprocity relation and modal expansion with perfectly matched layers. Numerical models are then implemented, including nonlinear semi-analytical finite element (SAFE) method to predict the properties of nonlinear ultrasonic guided waves, and time domain finite element models to simulate the nonlinear guided wave propagation and cross validate the predictions from the nonlinear SAFE method. Two examples, an aluminum plate attached to an elastomer and an aluminum plate with water loaded on one side, are studied to demonstrate the proposed methods and reveal some interesting phenomena that only exist in open waveguides. It is interesting to find out that the amplitude of the attenuated second harmonic wave in immersed waveguides can keep constant with propagation distance, only if the primary wave is non-leaky, which may bring potential non-destructive test applications for underwater inspections. Such a feature is validated by well-designed experiments in one-sidedly immersed plates.en
dc.description.sponsorshipMOE (Min. of Education, S’pore)en
dc.format.extent17 p.en
dc.language.isoenen
dc.relation.ispartofseriesThe Journal of the Acoustical Society of Americaen
dc.rights© 2018 Acoustical Society of America. This paper was published in The Journal of the Acoustical Society of America and is made available as an electronic reprint (preprint) with permission of Acoustical Society of America. The published version is available at: [http://dx.doi.org/10.1121/1.5055210]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.en
dc.subjectElectric Resistance Measurementen
dc.subjectDRNTU::Engineering::Mechanical engineeringen
dc.subjectConducive Filmsen
dc.titleInvestigation of nonlinear ultrasonic guided waves in open waveguides based on perfectly matched layersen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen
dc.identifier.doi10.1121/1.5055210en
dc.description.versionPublished versionen
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item.grantfulltextopen-
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