A Novel Composite with Structural Health Monitoring Functionality via 2D and 3D Impedance Mapping Topography
| Autor: | Alkiviadis S. Paipetis, Georgios Foteinidis |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Composite number 02 engineering and technology Carbon nanotube STRIPS 010402 general chemistry lcsh:Technology 01 natural sciences composites law.invention lcsh:Chemistry law General Materials Science Composite material lcsh:QH301-705.5 Instrumentation Electrical impedance Fluid Flow and Transfer Processes impedance spectroscopy structural health monitoring carbon nanotubes lcsh:T Process Chemistry and Technology Bode plot damage mapping General Engineering 021001 nanoscience & nanotechnology lcsh:QC1-999 0104 chemical sciences Computer Science Applications Dielectric spectroscopy lcsh:Biology (General) lcsh:QD1-999 lcsh:TA1-2040 Structural health monitoring Nyquist plot lcsh:Engineering (General). Civil engineering (General) 0210 nano-technology lcsh:Physics |
| Zdroj: | Applied Sciences Volume 11 Issue 4 Applied Sciences, Vol 11, Iss 1647, p 1647 (2021) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app11041647 |
| Popis: | We report the transformation of a conventional composite material into a multifunctional structure able to provide information about its structural integrity. A purposely positioned grid of carbon fabric strips located within a glass fibre laminate in alternating 0/90 configuration combined with a ternary nanomodified epoxy matrix imparted structural health monitoring (SHM) topographic capabilities to the composite using the impedance spectroscopy (IS) technique. The matrix was reinforced with homogenously dispersed multi-walled carbon nanotubes (MWCNTs) and carbon black (CB). A sinusoidal electric field was applied locally over a frequency range from 1 Hz to 100 kHz between the junction points of the grid of carbon fabric strips. The proposed design enabled topographic damage assessment after a high-velocity impact via the local monitoring of the impedance. The data obtained from the IS measurements were depicted by magnitude and phase delay Bode plots and Nyquist plots. The impedance values were used to create a 2D and a multi-layer (3D) contour topographical image of the damaged area, which revealed crucial information about the structural integrity of the composite. |
| Databáze: | OpenAIRE |
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