Volume: 2, 2023
2nd International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland:
ENVIRONMENT – PLANT – ANIMAL – PRODUCT
Abstract number: T027
DOI: https://doi.org/10.24326/ICDSUPL2.T027
Published online: 19 April 2023
ICDSUPL, 2, T027 (2023)
Damage identification of FRP composite with using Acoustic Emission
Izabela Korzec1*, Sylwester Samborski2
1 Department of Applied Mechanics, Faculty of Mechanical Engineering, Lublin Univeristy of Technology, Nadbystrzycka 38 D, 20-618, Lublin, Poland
2 Department of Production Engineering, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 38 D, 20-618, Lublin, Poland
* Corresponding author: i.korzec@pollub.pl
Abstract
A series of experiments specimens of Fiber Reinforced Polymer (FRP) composites were carried out, the goal was determining fracture resistance. Damage initiation and evolution monitored with Acoustic Emission (AE) technique. The AE technique is a non-destructive material testing method, in which the frequence of elastic waves can reach the range from 20 kHz to 1 MHz. The most often interesting range of the emisssion usually exceeds 100 kHz. This enabled to monitoring of several damage phenomena in FRP composites, such as matrix cracking, delamination, fiber cracking, etc., by capturing and subsequent analysis of various AE parameters, such as the number of hits, counts, amplitude, or energy of the signal. The benefits of using Fast Fourier Transform to more in-depth examination of the raw AE signal were discussed in the study.The Acoustic Emission characteristics disausseal at this work showed a lot of correlations with ultimate load and can provide useful information for damage identyfication. During tension test of FRP specimens, cumulative counts of AE signal indicated changes in the slope, while the stress-strain relationship of the FRP bars showed essentially no deviation from linearity. The flexibility to monitor small part or volume of a structure in a single test using an AE sensors is one benefits of this technique. As a result, it is an useful technique for material monitoring even in larger constructions.
How to cite
I. Korzec, S. Samborski, 2023. Damage identification of FRP composite with using Acoustic Emission. In: 2nd International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland: Environment – Plant – Animal – Product. https://doi.org/10.24326/ICDSUPL2.T027