Conclusions
The energy spectra of acoustic signals during stretching of an epoxy specimen reinforced with carbon fiber and of a pure epoxy matrix differ substantially. Results of a comparison of these spectra make it possible to distinguish acoustic emission signals due to failure of the fiber during stretching of a reinforced composite and to plot curves of the average length of failing fiber fragments as a function of strain.
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Translated from Mekhanika Kompozitnykh Materialov, No. 6, pp. 734–740, November–December, 1993.
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Gorbatkina, Y.A., Korabel'nikov, Y.G., Tamuzh, V.P. et al. Some characteristics of the use of the acoustic emission method in the study of the fragmentation of single fibers in a polymer matrix. Mech Compos Mater 29, 540–545 (1994). https://doi.org/10.1007/BF00616317
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DOI: https://doi.org/10.1007/BF00616317