The eddy-current flaw detection non-destructive testing of polymer composite materials in cyclic loading
Authors: Mikheev P.V., Bukharov S.V., Lebedev A.K., Sunder R.
Published in issue: #11(143)/2023
DOI: 10.18698/2308-6033-2023-11-2314
Category: Aviation and Rocket-Space Engineering | Chapter: Design, construction and production of aircraft
High-temperature thermoplastics are currently finding the increased technological application. The paper considers possibility of measuring the integral defectiveness of a carbon fiber plastic product based on the polyetheretherketone. To analyze damage accumulation when studying the sample, the technique of registering the eddy current signal was introduced. Several sections of the air-breathing engine duct related to the low-pressure compressor were examined. The thin-walled part made by pressing from a sheet blank had a double curvature, which complicated using the traditional control methods. After manufacture, material properties and quality of the workmanship were studied; besides, the part service life was assessed by cycling on a vibration stand. It is shown that the eddy current flaw detection technique makes it possible to find local deviations in the structure using the electrical conductivity deviation and to register the material micro-destructions during vibration testing and with the damage accumulation.
References
[1] Sunder R., Andronik A., Savkin A., Biakov A., Eremin A., Panin S. Combined action of crack closure and residual stress under periodic overloads: a fractographic analysis. International Journal of Fatigue, 2016, vol. 82, pp. 667–675. https://doi.org:10.1016/j.ijfatigue.2015.09.025
[2] Mikheev P.V., Muranov A.N., Gusev S.A. Eksperimentalnoe opredelenie modulya mezhsloevogo sdviga sloistogo ugleplastika [Experimental definition of the module of interlayered shift of the layered carbon fibre reinforced plastic]. Konstruktsii iz kompozitsionnykh materialov — Composite materials constructions, 2015, no. 4 (140), pp. 46–50.
[3] Smirnov G.K., Lapin R.V., Fateeva M.A., Khodnev A.D., Gareev A.R., Reznik S.V. Vybor temperaturnogo rezhima termopressovaniya kompozitsionnogo materiala na osnove polifenilensulfida [Selection of temperature conditions for thermal pressing of composite material based on the polyphenylene sulfide]. In: Sb. nauch. trudov V Vserossiyskoy nauchno-tekhnicheskoy konferentsii “Polimernye kompozitsionnye materialy i proizvodstvennye tekhnologii novogo pokoleniya”, Moskva, 19 noyabrya 2021 goda. [Coll. scientific works of the V All-Russian Scientific and Technical Conference. Polymer composite materials and new generation production technologies, Moscow, November 19, 2021]. Moscow, 2021, pp. 168–176.
[4] Nelyub V.A., Buyanov I.A., Chudnov I.V., Borodulin A.S., Mikheev P.V., Pnev A.B. Vstroennyi kontrol tekuschego sostoyaniya nagruzhennykh konstruktsiy iz polimernykh materialov [Built-in control of the current state of loaded structures made of the polymer composite materials]. Vse Materialy. Entsiklopedicheskii Spravochnik — All materials. Encyclopaedic reference manual, 2012, no. 8, pp. 56–58.
[5] Fedosenko Yu.K., Shkatov P.N., Efimov A.G. Vikhrevoy kontrol. Seriya “Diagnostika bezopasnosti” [Eddy current testing. Series “Security Diagnostics”]. 2nd edition. Moscow, Spektr Publ., 2014, 224 p.
[6] Syasko V.A., Chertov D.N. Vyyavlenie rassloeniy ugleplastikovykh materialov s ispolzovaniem tangentsialnykh vikhretokovykh preobrazovateley [Identification of stratifications of carbon fiber materials with use tangential eddy current converters]. V mire nerazrushayushchego kontrolya — In the world of nondestructive control, 2012, no. 2 (56), pр. 9–21.
[7] Koyama K., Hoshikawa H., Koiima G. Eddy current nondestructive testing for carbon fiber-reinforced composites. Journal of Pressure Vessel Technology, Transactions of the ASME, 2013, vol. 135 (4), p. 041501. https://doi.org/10.1115/1.4023253
[8] Shkatov P.N., Didin G.A., Myakushev K.V., Mikheev P.V. Ispolzovanie metoda vikhrevykh tokov dlya defektoskopii ugleplastikov [Using the eddy current method for flaw detection in the carbon fiber reinforced plastics]. In: Sb. nauch. trudov XX Mezhdunarodnoy nauchno-tekhnicheskoy konferentsii “Konstruktsii i tekhnologii polucheniya izdeliy iz nemetallicheskikh materialov”, Obninsk, 02–04 oktyabrya 2013 goda. [Col. of scientific works of the XX International Scientific and Technical Conference “Designs and technologies in products manufacture from the non-metallic materials. Obninsk, October 02–04, 2013]. Moscow, BMSTU Publ., 2013, pp. 125–126.
[9] Gabbler S., Heuer H., Heinrich G. Measuring and imaging permittivity of insulators using high-frequency eddy-current devices. IEEE Transactions on Instrumentation and Measurement, 2015, vol. 64 (8), pp. 2227–2238. https://doi.org/10.1109/TIM.2015.2390851
[10] Berger D., Lanza G. Development and application of eddy current sensor arrays for process integrated inspection of carbon fiber preforms. Sensors, 2018, vol. 18 (1), pp. 4–10. https://doi.org/10.3390/s18010004
[11] Bardl G., Nocke A., Cherif A., Pooch M., Schulze M., Heuer H., Schiller M. Automated detection of yarn orientation in 3D-draped carbon fiber fabrics and preforms from eddy current data. Composites Part B: Engineering, 2016, vol. 96, pp. 312–324. https://doi.org/10.1016/j.compositesb.2016.04.040
[12] Mikheev P.V., Didin G.A., Shkatov P.N. Ispolzovanie metoda vikhrevykh tokov dlya defektoskopii konstruktsionnykh materialov na osnove uglerodnykh volokon [Using the eddy current method for flaw detection in structural materials based on the carbon fibers]. In: Sb. nauch. trudov X Vserossiyskoy konferentsii po ispytaniyam i issledovaniyam svoystv materialov “TestMat”. Moskva, 09 fevralya 2018 g. [Coll. of scientific works of the X All-Russian Conference on Testing and Research of Material Properties “TestMat”. Moscow, February 09, 2018]. Moscow, 2018, pp. 188–194.