Stammdaten

Impedance analysis for condition monitoring of single lap CNT-epoxy adhesive joint
Untertitel:
Kurzfassung:

Multi-Walled Carbon NanoTubes (MWCNT) are ideally suited to be used for damage sensing in fiber reinforced composite materials, and are used for structural health monitoring in adhesive joints. In this work, the capability of MWCNTs for condition monitoring of a single lap Al-Al adhesive joints (SLJ) under shear load is studied using impedance measurements. Different weight percent of MWCNT, i.e. 2.5, 6 and 9 wt.% are added to epoxy adhesive. Epoxy adhesive containing 9 wt.% MWCNT is identified during shear loading to have the highest ultimate strength among the considered specimens and provide the best sensory properties. To provide a more concise evaluation of the damage progression in the adhesive layer under shear stress, artificial defects are inserted into the SLJ specimens. The effects of square and circular defects on the damage progression in the adhesive layer are studied. The results show that primary microcracks are initiated at and consequently develop from the defect boundary in the adhesive joints with larger size of defect. It was found that the shape of the defect does not have a significant effect on the impedance response and sharp resistance changes for specimens with circular and square defect areas of 70% overlap area were about 4.55 and 4.2% respectively. Additionally, when the crack grows entirely through the adhesive layer, a nonzero slope of the resistance change resulted even for low levels of shear displacement.

Schlagworte: Carbon nanotubes Single lap adhesive joint damage sensing impedance measurement
Publikationstyp: Beitrag in Zeitschrift (Autorenschaft)
Art der Veröffentlichung Online Publikation
Erschienen in: International Journal of Adhesion and Adhesives
International Journal of Adhesion and Adhesives
zur Publikation
 ( Elsevier; )
Erscheinungdatum: 08.11.2018
Titel der Serie: -
Bandnummer: 88
Heftnummer: -
Erstveröffentlichung: Ja
Version: -
Seite: S. 59 - 65

Identifikatoren

ISBN: -
ISSN: -
DOI: http://dx.doi.org/10.1016/j.ijadhadh.2018.11.003
AC-Nummer: -
Homepage: https://www.sciencedirect.com/science/article/pii/S0143749618302562?via%3Dihub
Open Access
  • Online verfügbar (Open Access)

Zuordnung

Organisation Adresse
Fakultät für Technische Wissenschaften
 
Institut für Intelligente Systemtechnologien
Universitätsstraße 65-67
9020  Klagenfurt am Wörthersee
Österreich
   hubert.zangl@aau.at
zur Organisation
Universitätsstraße 65-67
AT - 9020  Klagenfurt am Wörthersee

Kategorisierung

Sachgebiete
  • 205019 - Materialwissenschaften
Forschungscluster
  • Selbstorganisierende Systeme
Zitationsindex
  • Science Citation Index Expanded (SCI Expanded)
Informationen zum Zitationsindex: Thomson Reuters Master Journal List
Peer Reviewed
  • Ja
Publikationsfokus
  • Science to Science (Qualitätsindikator: I)
Klassifikationsraster der zugeordneten Organisationseinheiten:
Arbeitsgruppen
  • Sensor- und Aktortechnik

Kooperationen

Organisation Adresse
CTR AG
Europastr. 8
9500  Villach
Österreich
Europastr. 8
AT - 9500  Villach
University of Tehran, School of Mechanical Engineering
16th Azar St., Enghelab Sq.
1417466191  Tehran
Iran, Islamische Republik
16th Azar St., Enghelab Sq.
IR - 1417466191  Tehran
FH Kärnten
Primoschgasse 10
9500  Villach
Österreich
Primoschgasse 10
AT - 9500  Villach

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