Conference proceeding
Monitoring the curing process of structural adhesives using the electromechanical impedance technique: a numerical investigation
APFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures
Asia-Pacific Conference on FRP in Structures, Seventh (Surfers Paradise, Gold Coast, 10/12/2019 - 13/12/2019)
10/12/2019
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Abstract
Structural adhesives act as a bonding agent to externally bond fibre-reinforced polymer (FRP) composites onto existing structures for strengthening purposes. The performance of FRP-strengthened systems are therefore affected by the strength and stiffness of the structural adhesive layer. The lead zirconate titanate (PZT)-based electromechanical impedance (EMI) technique was employed in this study to monitor the stiffness development process of structural adhesives. A finite element model was developed to investigate the interaction between the PZT patches and the structural adhesive throughout the curing process. The dynamic elastic modulus of the structural adhesives can be predicted from the simulated EMI signatures. The EMI signatures were compared with experimental results for verification purposes. An empirical equation was established to predict the elastic modulus of structural adhesives from the resonance frequency. The current study can be extended by developing a model that predicts the tensile strength of structural adhesives at different curing durations.
Details
- Title
- Monitoring the curing process of structural adhesives using the electromechanical impedance technique: a numerical investigation
- Creators
- Zi Sheng Tang (Corresponding Author) - Southern Cross UniversityYee Yan Lim - Southern Cross UniversityScott T Smith - Southern Cross UniversityNicholas Sirach - Southern Cross University
- Publication Details
- APFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures
- Conference
- Asia-Pacific Conference on FRP in Structures, Seventh (Surfers Paradise, Gold Coast, 10/12/2019 - 13/12/2019)
- Publisher
- APFIS Conference Series
- Identifiers
- 991012868999402368
- Academic Unit
- Engineering; Faculty of Science and Engineering; School of Environment, Science and Engineering
- Language
- English
- Resource Type
- Conference proceeding