Studia Universitatis Babeş-Bolyai. Engineering (Nov 2021)

Acoustic emission as a valuable technique used for monitoring polymer failures

  • Jakub Skoczylas,
  • Sylwester Samborski,
  • Mariusz Kłonica

DOI
https://doi.org/10.24193/subbeng.2021.1.4
Journal volume & issue
Vol. 66, no. 1
pp. 34 – 44

Abstract

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In the paper, acoustic emission (AE) system was presented as a method that can be used to monitor polymer material failures. Samples fabricated of two aluminum profiles bonded together with a thick layer of cured epoxy resin were subjected to fracture tests. Epidian 53 epoxy resin cured with Z1 curing agent as well as Epidian 5 epoxy resin cured with PAC curing agent were selected as adhesives. Acoustic emission parameters were acquired during Double Cantilever Beam (DCB) tests. The frequencies of elastic waves released during failure were then analyzed using both Fast Fourier Transformation (FFT) and Wavelet Transformation (WT) for the two materials.

Keywords