Evaluation of conductive smart composite polymeric materials for potential applicationsin structural health monitoring and strain detection
Tóm tắt
The presented work collects results from the evaluation of electrical response to mechanical deformation and formation of defects presented by different polymeric based composite materials with potential for applications in Structural Health Monitoring and Strain Detection. With the aim of showing the variety of key materials in sectors like civil aviation, wind energy, automotive or railway that present this ability, specimens of very different nature have been analyzed: a) thermoplastic commercial 3D printing filaments loaded with carbonic fillers; b) epoxy resin loaded with Carbon Nanotubes and c) long carbon fiber reinforced resin composite. Measurements of electrical properties of these materials were taken to evaluate their capability to detect the presence of structural defects of different sizes as well as its spatial location. On the other hand, simultaneous measurements of electrical resistivity and mechanical strain during tensile tests were performed to analyze the potential of materials as strain detectors. All composites studied have shown a positive response (modification of electrical performance) to external mechanical stimulus: induced damage and deformations.
Tài liệu tham khảo
K. Diamanti et al., Structural health monitoring techniques for aircraft composites tructures. Prog Aerosp Sci 46, 342–352 (2010)
M. Park et al., Strain-dependent electrical resistance of multi-walled carbon nanotube/polymer composite films. Nanotechnology. 19(5), 055705 (2008). https://doi.org/10.1088/0957-4484/19/05/055705. (7pp)
E.T. Thostenson et al., Real-time in situ sensing of damage evolution in advanced fiber composites using carbon nanotube networks. Nanotechnology. 19, 215713 (2008). https://doi.org/10.1088/0957-4484/19/21/215713. (6pp)
L. Gao et al., Sensing of Damage Mechanisms in Fiber-Reinforced Composites under Cyclic Loading using Carbon Nanotubes. Adv. Funct. Mater. 19, 123–130 (2009). https://doi.org/10.1002/adfm.200800865
J.-M. Park et al., Inherent sensing and interfacial evaluation of carbon nanofiber and nanotube/epoxy composites using electrical resistance measurement and micromechanical technique. Composites: Part B 38, 847–861 (2007)
C Viets, et al. Damage mapping of GFRP via electrical resistance measurements using nanocomposite epoxy matrix systems. Composite part B. 2013. dx.doi.org/https://doi.org/10.1016/j.compositesb.2013.09.049.
http://www.eco-compass.eu/context-2
R. Zhang et al., Strain sensing behaviour of elastomeric composite films containing carbon nanotubes under cyclic loading. Compos Sci Technol 74, 1–5 (2013)
Katsunori Suzuki. Rapid-response, Widely Stretchable Sensor of Aligned MWCNT/Elastomer Composites for Human Motion Detection.2016. DOI: https://doi.org/10.1021/acssensors.6b00145
Conor S Boland et al. Sensitive, High-Strain, High-Rate Bodily Motion Sensors Based on GrapheneRubber Composites. 2017. (DOI: https://doi.org/10.1002/adfm.201606604).
Hongfei Zhu. Versatile Electronic Skins for Motion Detection of Joints Enabled by Aligned Few-Walled Carbon Nanotubes in Flexible Polymer Composites.2017. DOI: https://doi.org/10.1002/adfm.201606604
D. Xiang et al., Enhanced performance of 3D printed highly elastic strain sensors of carbon nanotube/thermoplastic polyurethane nanocomposites via non-covalent interactions. Composites Part B Eng 176, 107250 (2019). https://doi.org/10.1016/j.compositesb.2019.107250
B. Podsiadły et al., Electrically Conductive Nanocomposite Fibers for Flexible and Structural Electronics. Appl. Sci. 12, 941 (2022). https://doi.org/10.3390/app12030941
J..F. Christ et al., 3D printed highly elastic strain sensors of multiwalled carbon nanotube/thermoplastic polyurethane nanocomposites. Mater Des 131, 394–401 (2017). https://doi.org/10.1016/j.matdes.2017.06.011
C. Luan et al., Fabrication and characterization of in situ structural health monitoring hybrid continuous carbon/glass fiber–reinforced thermoplastic composite. Int J Adv Manuf Technol 116, 3207–3215 (2021). https://doi.org/10.1007/s00170-021-07666-3
Md. Fazlay Rabbi et al. Strain and damage sensing in additively manufactured CB/ABS polymer composites, Polymer Testing, Volume 90, 2020, 106688, ISSN 0142-9418, https://doi.org/10.1016/j.polymertesting.2020.106688