Citation link: http://dx.doi.org/10.25819/ubsi/10329
DC FieldValueLanguage
crisitem.author.orcid0000-0001-5692-469X-
dc.contributor.authorYokaribas, Volkan-
dc.contributor.authorKraemer, Peter-
dc.contributor.authorMende, Alexander B.-
dc.contributor.authorFritzen, Claus-Peter-
dc.date.accessioned2023-05-15T13:41:57Z-
dc.date.available2023-05-15T13:41:57Z-
dc.date.issued2021de
dc.descriptionFinanziert im Rahmen der DEAL-Verträge durch die Universitätsbibliothek Siegende
dc.description.abstractMany recent investigations in the context of graphene nanoplatelets (GNPs) coatings report surface strain measurements by using piezoresistive sensing capabilities. An often underestimated problem is that the strain field is unknown and the principal strain components as well as their orientations must be determined. Herein, GNP films subjected to multiaxial strain are examined. Experimental results show that although the sensitivity to longitudinal strain is the highest, the ratio between transverse and longitudinal sensitivity exceeds 0.5. The sensitivity to shear strain is much lower. A model assisted study of a random network provides additional guidelines for the different electromechanical sensitivities. In practice, the GNP film is usually subjected to different strains simultaneously so that the multiaxial strain measurement becomes difficult. Therefore, two novel approaches for sensing plane strain components with circular GNP films are developed and successfully verified in experiments. The numerical approach is called strain-differential electrical impedance tomography (SD-EIT), where the proposed piezoresistive model elementwise in a finite element model is implemented and the strain components of a strain rosette are reconstructed. Moreover, an analytical approach is derived from SD-EIT and exhibits further the opportunity to detect anomalies within the piezoresistive sensing behavior of GNP films.en
dc.identifier.doihttp://dx.doi.org/10.25819/ubsi/10329-
dc.identifier.urihttps://dspace.ub.uni-siegen.de/handle/ubsi/2522-
dc.identifier.urnurn:nbn:de:hbz:467-25221-
dc.language.isoende
dc.rightsNamensnennung 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.sourceSmall science ; 1(12), article number 2100088. - https://doi.org/10.1002/smsc.202100088de
dc.subject.ddc620 Ingenieurwissenschaften und zugeordnete Tätigkeitende
dc.subject.otherGraphene nanoplateletsen
dc.subject.otherPiezoresistive effecten
dc.subject.otherSpray depositionen
dc.subject.otherStrain-differential electrical impedance tomographyen
dc.subject.otherNanoplättchen aus Graphende
dc.subject.otherPiezoresistiver Effektde
dc.subject.otherSprühabscheidungde
dc.subject.otherDehnungsdifferentiale elektrische Impedanztomographiede
dc.subject.swbDehnungsmessungde
dc.subject.swbImpedanztomografiede
dc.subject.swbFotochemische Reaktionde
dc.subject.swbPiezowiderstandseffektde
dc.titleNovel methodologies for multiaxial strain measurements with piezoresistive films based on graphene nanoplateletsen
dc.typeArticlede
item.fulltextWith Fulltext-
ubsi.publication.affiliationDepartment Maschinenbaude
ubsi.source.doi10.1002/smsc.202100088-
ubsi.source.issn2688-4046-
ubsi.source.issued2021de
ubsi.source.issuenumber12de
ubsi.source.pages12de
ubsi.source.placeWeinheimde
ubsi.source.publisherWiley-VCHde
ubsi.source.titleSmall sciencede
ubsi.source.volume1de
ubsi.subject.ghbsWBFde
Appears in Collections:Geförderte Open-Access-Publikationen
Files in This Item:
File Description SizeFormat
Novel_methodologies_for_multiaxial_strain_measurements.pdf4.34 MBAdobe PDFThumbnail
View/Open

This item is protected by original copyright

Show simple item record

Page view(s)

298
checked on Dec 25, 2024

Download(s)

72
checked on Dec 25, 2024

Google ScholarTM

Check

Altmetric


This item is licensed under a Creative Commons License Creative Commons