Study of the fracture kinetics of a unidirectional laminate using acoustic emission and video recording

The kinetics of fracture of structural bonds in a unidirectional laminate package under the effect of tensile load is studied using acoustic emission (AE) combined with video recording. A correspondence between the fractures occurred at micro-, meso-, and macroscale levels of the laminate package and the location pulses thus recorded, their energy parameters, shape and spectrum is determined. Data on testing of the new criterion parameters used in acoustic emission monitoring, including the frequency of registration of location pulses in energy clusters and their weight content, as well as the methods providing separation of location pulses into the lusters with similar spectra related to the same or similar types of acoustic emission events are presented. The proposed parameters and structural-phenomenological approach implemented through dividing the entire array of acoustic-emission data into energy clusters make it possible to quantify the degree of destruction of structural bonds of structural material at all scale levels and predict the residual strength of the product. Fusion of the acoustic emission events recorded at different stages of specimen loading and images of video recording of damage accumulation and fracture of the structural bonds in a unidirectional laminate package revealed the a correspondence between the fracture of the composite occurred at micro-, meso- and macro-scale levels, acoustic waves thus generated and location pulses, their energy parameters, shape and spectrum.

1. Problems of the strength of materials, industrial security and construction materials / Makhutov N. A., Matvienko Yu. G., Romanov A. N., Ed. — Moscow: Lenand, 2018. — 720 p. [in Russian].

2. Matvienko Yu. G., Vasil’ev I. E., Chernov D. V., and Elizarov S. V. Criterion parameters for assessing degradation of composite materials by acoustic emission testing / J. Nondestructive Testing. 2018. Vol. 54. N 12. P. 811 – 819.

3. Matvienko Yu. G., Vasil’ev I. E., Ivanov V. I., and Elizarov S. V. Acoustic-emission evaluation of the process of destruction of a composite material under tensile, compression, and cyclic loads / J. Nondestructive Testing. 2016. Vol. 52. N 8. P. 443 – 456.

4. Vasil’ev I. E., Matvienko Yu. G., Pankov A. V., and Kalinin A. G. The application of the method of early damage diagnostics in the research of the aviation panel / Zavod. Lab. Diagn. Mater. 2019. Vol. 85. N 6. P. 40 – 56 [in Russian].

5. Matvienko Yu. G., Vasil’ev I. E., Chernov D. V. Diagnostics of fracture and damage with acoustic emission method / Priv. Komponenty Mashin. 2018. N 5. P. 13 – 18 [in Russian].

6. Matvienko Yu. G., Vasil’ev I. E., Chernov D. V., and Pankov A. V. Acoustic emission monitoring of the process of damage to the support of the strut under cyclic loading / Defektoskopiya. 2019. N 8. P. 24 – 33 [in Russian].

7. Saeedifar Milad, Najafabadi Mehdi Ahmadi, Zarouchas Dimitrios, Toudeshky Hossein Hosseini, Jalalvand Meisam. Clustering of interlaminar and intralaminar damages in laminated composites under indentation loading using Acoustic Emission / Composites Part B. 2018. Vol. 144. P. 206 – 219.

8. Sause M. G. R. Modeling of acoustic emission sources in fiber reinforced composites / Progress in acoustic emission XVIII. JSNDI-23t&tIIItAE. tKyoto. t2016. tP.t305t–t310.

9. tPashmforoush F., Khamedi R., Fotouhi M., Hajikhani M., Ahmadi M. Damage classification of sandwich composites using acoustic emission technique and k-means genetic algorithm / J. Nondestr. Eval. 2014. Vol. 33. N 4. P. 481 – 492.

10. Hill E. K., Foti C. J., Leung N. Y., Palacios A. E. Neural network burst prediction in tall graphite — epoxy vessels from acoustic emission data / Journal of Acoustic Emission. 2012. Vol. 30. P. 167 – 179.

11. Mahil C., Loo Ch., Sasikumar T., Suresh S. Analysis of failure mode and fracture behavior by using acoustic parameter and artificial neural network / Engineering Research Express. 2019. P. 1 – 15.

12. Crivelli D., Guagliano M., Monici A. Development of an artificial neural network processing technique for the analysis of damage evolution in pultruded composites with acoustic emission. Composite Part B: Engineering. 2014. Vol. 56. January. P. 948 – 959.

13. Li L., Lomov S. V., Yan X. Correlation of acoustic emission with optically observed damage in a glass epoxy woven laminate under tensile loading / Composite Structure. 2015. Vol. 123. P. 45 – 53.

14. Saravanakumar K., Arumugam V. Effect of milled glass fibers on quasi-static indentation and tensile behavior of tapered laminates under acoustic emission monitoring / Engineering Fracture Mechanics. 2018. Vol. 201. P. 36 – 46.

15. Abderrahim El Mahi, Hajer Daoud, Jean-Luc Rebiere, Isabelle Gimenez, Mohamed Taktak and Mohamed Haddar. Damage mechanisms characterization of flax fibers-reinforced composites with interleaved natural viscoelastic layer using acoustic emission analysis / Journal of Composite Materials. Review. 2019. Vol. 0(0). P. 1 – 15.

16. Mahmoud R. Abusrea, Seung-Wook Han, Kazuo Arakawa, Nak-Sam Choi. Bending strength of CFRP laminated adhesive joints fabricated by vacuum-assisted resin transfer molding / Composites Part B. 2019. Vol. 156. P. 8 – 16.

17. Stepanova L. N., Bataev V. A., Chernova V. V. Studying the failure of a cfrp sample under static loading by the acoustic-emission and fractography methods / Nondestructive Testing. 2017. Vol. 53. N 6. P. 422 – 429.

18. Stepanova L. N., Ramazanov I. S., Chernova V. V. A procedure for locating acoustic-emission signals during static testing of carbon composite samples / Nondestructive Testing. 2015. Vol. 51. N 4. P. 227 – 235.

19. Eaton M., Holford K., Featherston C. and Pullin R. Damage in Carbon Fibre Composites: The Discrimination of Acoustic Emission Signals Using Frequency / Journal of Acoustic Emission. 2007. Vol. 25. N 1. P. 140 – 148.

20. Sause M. G. R. Acoustic Emission Signal Propagation in Damaged Composite Structures / Journal of Acoustic Emission. 2013. Vol. 31. N 1. P. 1 – 18.

21. Andreas J. Brunner. Acoustic emission analysis for identification of damage mechanisms in fiber-reinforced polymer composites and structural integrity assessment: Selected examples and challenges / Progress in acoustic emission XVIII, JSNDI & III AE. Kyoto. 2016. P. 287 – 292.

22. Makhutov N. A., Vasil’ev I. E., Ivanov V. I., Chernov D. V. Modeling of the unstable dangerous states under formation of a cone granulated glass / Probl. Bezopasn. Chrezv. Sit. 2019. N 1. P. 3 – 24 [in Russian].