© The Institution of Engineering and Technology
Recent developments in electronics have demonstrated some advantages of using carbon fibres in manufacturing flexible PCBs thus requiring to elaborate some new approaches for checking PCB quality. Barely visible impact damage (BVID) represents a typical type of defects in carbon-based composites. In this study, the two inspection techniques, namely active infrared thermography and laser vibrometry, were comparatively used for detecting BVID in composite materials manufactured by three-dimensional printing from kevlar and carbon fibres. The comparative analysis of the composite resistance towards multifold impacting with the total energy of up to 15 J has demonstrated advantages of the hybrid configuration obtained by using the technology of additive manufacturing. The measurement of damping characteristics of the composites in the 50–100 kHz frequency range has also confirmed the ability of the hybrid composite to absorb more energy than classical single component materials.
References
-
-
1)
-
2. Huber, C., Abert, C., Bruckner, F.: ‘3D print of polymer bonded rare-earth magnets, and 3D magnetic field scanning with an end-user 3D printer’, Appl. Phys. Lett., 2016, 109, pp. 1–4. (doi: 10.1063/1.4964856).
-
2)
-
7. Solodov, I., Kreutzbruck, M.: ‘Mode matching to enhance nonlinear response of local defect resonance’, J. Sound Vibr., 2019, 461, pp. 1–12. (doi: 10.1016/j.jsv.2019.114916).
-
3)
-
3. Buechler, D.T., Zyaykina, N.N., Spencer, C.A., et al: ‘Comprehensive elemental analysis of consumer electronic devices: rare earth, precious, and critical elements’, Waste Manage., 2020, 103, pp. 67–75. (doi: 10.1016/j.wasman.2019.12.014).
-
4)
-
1. Brian, E.: ‘Practical 3D printers – the science and art of 3D Printing' (Apress, New York, 2012).
-
5)
-
4. Senophiyah-Mary, J., Loganath, R.: ‘A novel method of utilizing waste printed circuit board for the preparation of fibre reinforced polymer’, J. Cleaner Production, 2020, 246, pp. 1–8. (doi: 10.1016/j.jclepro.2019.119063).
-
6)
-
5. Swait, T.J., Jones, F.R., Hayes, S.A.: ‘A practical structural health monitoring system for carbon fibre reinforced composite based on electrical resistance’, Compos. Sci. Technol., 2012, 72, (13), pp. 1515–1523. (doi: 10.1016/j.compscitech.2012.05.022).
-
7)
-
6. Solodov, I., Rahammer, M., Kreutzbruck, M.: ‘Analytical evaluation of resonance frequencies for planar defects: effect of a defect shape’, NDT And E Int., 2019, 102, pp. 274–280. (doi: 10.1016/j.ndteint.2018.12.008).
-
8)
-
8. Vavilov, V., Chulkov, A., Smotrov, A., et al: ‘Characterizing impact damage in GFRP/CFRP composites by determining thermal effusivity/diffusivity’, Meas. sci. Technol., 2019, 30, , p. 11 p. ..
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