Investigation on thermooxidative aging of the polymer composite material by acoustic emission
https://doi.org/10.31242/2618-9712-2021-26-3-155-168
Abstract
Results of the investigation on the effect of thermooxidative aging conditions on the destruction of polymer composite material (PCM) based on recordable parameters of acoustic emission (AE) are reported. The objects of investigation were the samples cut out of a fiberglass plate. The plate was made by vacuum infusion using the Derakane 411-350 binder and 9 layers of St-62004 glass fabric. Samples were aged by exposing in the muffle furnace for 96 hours at a temperature of 60, 100, 120 and 200 °C. Mechanical tests were carried out by three-point static bending. AE was recorded with the hardware and software complex deleloped at the Komsomolsk-na-Amure State University. Two-stage clusterization of the frequency components of the signal spectra of the detected AE was carried out using the Kohonen self-organizing map according to the procedure developed previously and tested by the authors. The types of damage of PCM structure are characterized over the centroids of the resulting clusters. The kinetics of destruction process is described on the basis of cluster accumulation during mechanical tests, depending on the conditions of thermooxidative aging. The negative effect of increased temperature on the degradation of the polymer matrix was determined, leading to a decrease in the ability of efficient distribution of internal strain in the matrix over the PCM volume due to distortion of the adhesion with reinforcing material.
Supporting agencies: The research was carried out with financial support from the Russian Science Foundation (project number 21-19-00896).
About the Authors
A. A. Bryansky
Komsomolsk-na-Amure State University, Komsomolsk-on-Amur
Russian Federation
Russian Federation
BRYANSKY, Anton Aleksandrovich, postgraduate student
27 Lenina pr., Komsomolsk-on-Amur 681013
O. V. Bashkov
Komsomolsk-na-Amure State University, Komsomolsk-on-Amur
Russian Federation
Russian Federation
BASHKOV, Oleg Viktorovich, Dr. Sci. (Eng.), professor, head of the department
27 Lenina pr., Komsomolsk-on-Amur 681013
D. P. Malysheva
Komsomolsk-na-Amure State University, Komsomolsk-on-Amur
Russian Federation
Russian Federation
MALYSHEVA, Darya Pavlovna, postgraduate student
27 Lenina pr., Komsomolsk-on-Amur 681013
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Review
For citations:
Bryansky A.A., Bashkov O.V., Malysheva D.P. Investigation on thermooxidative aging of the polymer composite material by acoustic emission. Arctic and Subarctic Natural Resources. 2021;26(3):155-168. (In Russ.) https://doi.org/10.31242/2618-9712-2021-26-3-155-168
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