Acoustic Emission Monitoring of Composite Specimens with Impact Damage during Static Compression Test
IOP Conference Series: Materials Science and Engineering. Vol.1140: Modern Materials and Manufacturing (MMM 2021) 2021
Margarita Urbaha, I. Agafonovs, Vladislav Turko, Jurijs Feščuks, Juris Korhs

The standard specimens have been made by anisotropic carbon fiber plastic with an epoxy matrix. The specimens were subject to static load after its shock impact. During static compression loading, the parameters of acoustic emission (AE) signals were synchronously recorded: AE impulse amplitudes, its energy and the number of oscillations. According to the analysis of the acoustic emission signals the following events were observed: matrix cracking, fiber delamination and fiber destruction. The character of the AE signals change made it possible to determine the energy of the acoustic emission signals as a diagnostic witness of the onset of two moments of the specimen destruction. The first = near 70% of ultimate load’s (the destruction of matrix) and total destruction under ultimate static load.


Keywords
acoustic emission, composite materials, impact damage, compression test
DOI
10.1088/1757-899X/1140/1/012001
Hyperlink
https://iopscience.iop.org/article/10.1088/1757-899X/1140/1/012001

Urbaha, M., Agafonovs, I., Turko, V., Feščuks, J., Korhs, J. Acoustic Emission Monitoring of Composite Specimens with Impact Damage during Static Compression Test. IOP Conference Series: Materials Science and Engineering, 2021, Vol. 1140, Article number 012001. ISSN 1757-8981. e-ISSN 1757-899X. Available from: doi:10.1088/1757-899X/1140/1/012001

Publication language
English (en)
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