Abstract
The acoustic emission (AE) characteristics of reinforced concrete components subjected to four-point bending load were investigated to identify different sources of damage. The parameter and waveform analysis were jointly performed in signal processing to extract useful information from massive AE data. The combined method adopted AE energy analysis to all signals to realize quick filter and empirical mode decomposition (EMD) to key signals to get the energy mode including energy entropy and energy vector. Further supplemented by characteristic frequency of intrinsic mode functions (IMFs), the energy mode was capable of inferring the common damage sources, e.g., the concrete deterioration or steady crack propagation, the macroscopic cracking or large crack propagation, and the moment of beam rupture.
Project: China Ministry of Housing and Urban-Rural Development science and technology program (2016-K4-074).
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Gu, A., Sun, L., Liang, J., Han, W. (2019). Acoustic Emission Characteristics Based on Energy Mode of IMFs. In: Shen, G., Zhang, J., Wu, Z. (eds) Advances in Acoustic Emission Technology. WCAE 2017. Springer Proceedings in Physics, vol 218. Springer, Cham. https://doi.org/10.1007/978-3-030-12111-2_11
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DOI: https://doi.org/10.1007/978-3-030-12111-2_11
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