Electromechanical modelling of a new class of nanocomposite cement-based sensors for structural health monitoring

dc.contributor.author D'Alessandro, Antonella
dc.contributor.author Ubertini, Filippo
dc.contributor.author Materazzi, Annibale
dc.contributor.author Laflamme, Simon
dc.contributor.author Porfiri, Maurizio
dc.contributor.department Civil, Construction and Environmental Engineering
dc.date 2018-02-16T08:43:05.000
dc.date.accessioned 2020-06-30T01:13:44Z
dc.date.available 2020-06-30T01:13:44Z
dc.date.copyright Wed Jan 01 00:00:00 UTC 2014
dc.date.issued 2014-11-24
dc.description.abstract <p>This work focuses on the analysis of a new nanocomposite cement-based sensor (carbon nanotube cement-based sensor), for applications in vibration-based structural health monitoring of civil engineering structures. The sensor is constituted of a cement paste doped with multi-walled carbon nanotubes, so that mechanical deformations produce a measurable change of the electrical resistance. Prior work of some of the authors has addressed the fabrication process, dynamic behaviour and implementation to full-scale structural components. Here, we investigate the effectiveness of a linear lumped-circuit electromechanical model, in which dynamic sensing is associated with a strain-dependent modulation of the internal resistance. Salient circuit parameters are identified from a series of experiments where the distance between the electrodes is parametrically varied. Experimental results indicate that the lumped-circuit model is capable of accurately predicting the step response to a voltage input and its steady-state response to a harmonic uniaxial deformation. Importantly, the model is successful in anticipating the presence of a superharmonic component in sensor’s output.</p>
dc.description.comments <p>This is a manuscript of an article from <em>Structural Health Monitoring</em>, 14(2), 2015: 137-147 doi: <a href="http://www.dx.doi.org/10.1177/1475921714560071" target="_blank">10.1177/1475921714560071</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/ccee_pubs/72/
dc.identifier.articleid 1070
dc.identifier.contextkey 7055764
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ccee_pubs/72
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/13983
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/ccee_pubs/72/2015_LaflammeS_ElectromechanicalModeling.pdf|||Sat Jan 15 01:43:56 UTC 2022
dc.source.uri 10.1177/1475921714560071
dc.subject.disciplines Civil Engineering
dc.subject.disciplines Construction Engineering and Management
dc.subject.disciplines Environmental Engineering
dc.subject.disciplines Structural Engineering
dc.subject.keywords CNDE
dc.subject.keywords Carbon nanotubes
dc.subject.keywords electromechanical model
dc.subject.keywords nanotechnology
dc.subject.keywords smart materials
dc.subject.keywords smart sensors
dc.subject.keywords structural health monitoring
dc.title Electromechanical modelling of a new class of nanocomposite cement-based sensors for structural health monitoring
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 84547f08-8710-4934-b91e-ba5f46ab9abe
relation.isOrgUnitOfPublication 933e9c94-323c-4da9-9e8e-861692825f91
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