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dc.contributor.authorHabib, Anowarul
dc.contributor.authorShelke, Amit
dc.contributor.authorAmjad, U
dc.contributor.authorPietsch, Ullrich
dc.contributor.authorBanerjee, S
dc.date.accessioned2019-02-19T14:24:00Z
dc.date.available2019-02-19T14:24:00Z
dc.date.issued2018-09-18
dc.description.abstractIn this paper, a novel method to quantify the incubation of damage on piezoelectric crystal is presented. An intrinsic length scale parameter obtained from nonlocal field theory is used as a novel measure for quantification of damage precursor. Features such as amplitude decay, attenuation, frequency shifts and higher harmonics of guided waves are commonly-used damage features. Quantification of the precursors to damage by considering the mentioned features in a single framework is a difficult proposition. Therefore, a nonlocal field theory is formulated and a nonlocal damage index is proposed. The underlying idea of the paper is that inception of the damage at the micro scale manifests the evolution of damage at the macro scale. In this paper, we proposed a nonlocal field theory, which can efficiently quantify the inception of damage on piezoelectric crystals. The strength of the method is demonstrated by employing the surface acoustic waves (SAWs) and longitudinal bulk waves in Lithium Niobate (LiNbO3) single crystal. A control damage was introduced and its manifestation was expressed using the intrinsic dominant length scale. The SAWs were excited and detected using interdigital transducers (IDT) for healthy and damage state. The acoustic imaging of microscale damage in piezoelectric crystal was conducted using scanning acoustic microscopy (SAM). The intrinsic damage state was then quantified by overlaying changes in time of flight (TOF) and frequency shift on the angular dispersion relationship.en_US
dc.description.sponsorshipSkoltech The office of Vice President of Research at the University of South Carolina Norwegian Micro-and Nano-Fabrication Facility, NorFab UiT The Arctic University of Norway.en_US
dc.descriptionSource at <a href=https://doi.org/10.3390/app8091683> https://doi.org/10.3390/app8091683</a>.en_US
dc.identifier.citationHabib, A., Shelke, A., Amjad, U., Pietsch, U. & Banerjee, S. (2018). Nonlocal damage mechanics for quantification of health for piezoelectric sensor. <i>Applied Sciences, 8</i>(9). https://doi.org/10.3390/app8091683en_US
dc.identifier.cristinIDFRIDAID 1627897
dc.identifier.doi10.3390/app8091683
dc.identifier.issn2076-3417
dc.identifier.urihttps://hdl.handle.net/10037/14724
dc.language.isoengen_US
dc.publisherMDPIen_US
dc.relation.journalApplied Sciences
dc.relation.projectIDThe Research Council of Norway: ?en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Mathematics and natural science: 400::Physics: 430en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Fysikk: 430en_US
dc.subjectinterdigital transducersen_US
dc.subjectLithium Niobateen_US
dc.subjectnonlocal field theoryen_US
dc.subjectnonlocal parameteren_US
dc.subjectsurface acoustic wavesen_US
dc.titleNonlocal damage mechanics for quantification of health for piezoelectric sensoren_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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