Dynamic Characterization of a Soft Elastomeric Capacitor for Structural Health Monitoring

dc.contributor.author Laflamme, Simon
dc.contributor.author Ubertini, Filippo
dc.contributor.author Saleem, Hussam
dc.contributor.author D'Alessandro, Antonella
dc.contributor.author Ceylan, Halil
dc.contributor.author Downey, Austin
dc.contributor.author Materazzi, Annibale
dc.contributor.department Civil, Construction and Environmental Engineering
dc.date 2018-02-16T11:40:24.000
dc.date.accessioned 2020-06-30T01:13:46Z
dc.date.available 2020-06-30T01:13:46Z
dc.date.copyright Wed Jan 01 00:00:00 UTC 2014
dc.date.issued 2014-07-14
dc.description.abstract <p>Structural health monitoring of civil infrastructures is a difficult task, often impeded by the geometrical size of the monitored systems. Recent advances in conducting polymers enabled the fabrication of flexible sensors capable of covering large areas, a possible solution to the monitoring challenge of mesoscale systems. The authors have previously proposed a novel sensor consisting of a soft elastomeric capacitor (SEC) acting as a strain gauge. Arranged in a network configuration, the SECs have the potential to cover very large surfaces. In this paper, understanding of the proposed sensor is furthered by evaluating its performance at vibration-based monitoring of large-scale structures. The dynamic behavior of the SEC is characterized by subjecting the sensor to a frequency sweep, and detecting vibration modes of a full-scale steel beam. Results show that the sensor can be used to detect fundamental modes and dynamic input. Also, a network of SECs is used for output-only modal identification of a full-scale concrete beam, and results are benchmarked against off-the-shelf accelerometers. The SEC network performs well at estimating both natural frequencies and mode shapes. The resolution of the sensor is currently limited by the available electronics to measure small changes in capacitance, which reduces its accuracy with increasing frequencies in both the time and frequency domain.<br /><br /></p>
dc.description.comments <p>This is a manuscript of an article from Journal of Structural Engineering, July 2014. Doi: <a href="http://www.dx.doi.org/10.1061/(ASCE)ST.1943-541X.0001151." target="_blank">10.1061/(ASCE)ST.1943-541X.0001151.</a> Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/ccee_pubs/78/
dc.identifier.articleid 1080
dc.identifier.contextkey 7184967
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ccee_pubs/78
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/13989
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/ccee_pubs/78/2014_LaflammeS_MANU_DynamicCharacterization.pdf|||Sat Jan 15 01:54:03 UTC 2022
dc.source.uri 10.1061/(ASCE)ST.1943-541X.0001151
dc.subject.disciplines Civil Engineering
dc.subject.disciplines Construction Engineering and Management
dc.subject.disciplines Electrical and Electronics
dc.subject.disciplines Environmental Engineering
dc.subject.disciplines Nanotechnology Fabrication
dc.subject.keywords CNDE
dc.subject.keywords Soft elastomeric capacitor
dc.subject.keywords smart sensors
dc.subject.keywords nanotechnology
dc.subject.keywords strain gauges
dc.subject.keywords structural health monitoring
dc.subject.keywords vibration signatures
dc.title Dynamic Characterization of a Soft Elastomeric Capacitor for Structural Health Monitoring
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 84547f08-8710-4934-b91e-ba5f46ab9abe
relation.isAuthorOfPublication 3cb73d77-de43-4880-939a-063f9cc6bdff
relation.isOrgUnitOfPublication 933e9c94-323c-4da9-9e8e-861692825f91
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