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Source Localization in a Framed Structure for Effective Damage Detection Using Acoustic Emission Technique
Acoustic Emission (AE) technique is capable of detecting real time small-scale damage long before failure in a structure. However, the placement of sensors in a framed structure is an important issue for effective damage detection, which remains a challenge for many researchers. In this study, an experimental investigation is carried out for the localization of mounted AE sensors on a prototype rigid framed structure, and by detecting simulated AE source using Pencil Lead Break (PLB), on different beam and column locations of each floor levels of the framed structure. Then with the recorded AE signal waveforms, frequency analyses have been performed using the wavelet transform to get the signal’s energy concentration. To localize the damage the wavelet transform is used in the time-frequency domain along with the group velocity. From the data comparison and analysis, it is found that for effective damage detection a single AE sensor can to be placed at the beam-column joints of each floor level of framed structure on every plane of the frame.
Source Localization in a Framed Structure for Effective Damage Detection Using Acoustic Emission Technique
Acoustic Emission (AE) technique is capable of detecting real time small-scale damage long before failure in a structure. However, the placement of sensors in a framed structure is an important issue for effective damage detection, which remains a challenge for many researchers. In this study, an experimental investigation is carried out for the localization of mounted AE sensors on a prototype rigid framed structure, and by detecting simulated AE source using Pencil Lead Break (PLB), on different beam and column locations of each floor levels of the framed structure. Then with the recorded AE signal waveforms, frequency analyses have been performed using the wavelet transform to get the signal’s energy concentration. To localize the damage the wavelet transform is used in the time-frequency domain along with the group velocity. From the data comparison and analysis, it is found that for effective damage detection a single AE sensor can to be placed at the beam-column joints of each floor level of framed structure on every plane of the frame.
Source Localization in a Framed Structure for Effective Damage Detection Using Acoustic Emission Technique
Structural Integrity
Fonseca de Oliveira Correia, José António (editor) / Choudhury, Satyabrata (editor) / Dutta, Subhrajit (editor) / Biswas, Anupam Kumar (author) / Datta, Aloke Kumar (author) / Topdar, Pijush (author) / Sengupta, Sanjay (author)
International Conference on Advances in Structural Mechanics and Applications ; 2021 ; Silchar, India
Advances in Structural Mechanics and Applications ; Chapter: 26 ; 344-352
Structural Integrity ; 27
2022-06-03
9 pages
Article/Chapter (Book)
Electronic Resource
English
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