Modeling and Analysis of Acoustic Emission Generated by Fatigue Cracking

The acoustic emission (AE) method is a popular and well-developed method for passive structural health monitoring of metallic and composite structures. The current study focuses on the analysis of one of its processes, sound source or signal propagation. This paper discusses the principle of plate w...

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Main Authors: Weilei Mu, Yuqing Gao, Yuxue Wang, Guijie Liu, Hao Hu
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/22/3/1208
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author Weilei Mu
Yuqing Gao
Yuxue Wang
Guijie Liu
Hao Hu
author_facet Weilei Mu
Yuqing Gao
Yuxue Wang
Guijie Liu
Hao Hu
author_sort Weilei Mu
collection DOAJ
description The acoustic emission (AE) method is a popular and well-developed method for passive structural health monitoring of metallic and composite structures. The current study focuses on the analysis of one of its processes, sound source or signal propagation. This paper discusses the principle of plate wave signal sensing using piezoelectric transducers, and derives an analytical expression for the response of piezoelectric transducers under the action of stress waves, to obtain an overall mathematical model of the acoustic emission signal from generation to reception. The acoustic emission caused by fatigue crack extension is simulated by a finite element method, and the actual acoustic emission signal is simulated by a pencil lead break experiment. The results predicted by the mathematical model are compared with the experimental results and the simulation results, respectively, and show good agreement. In addition, the presence of obvious S0 mode Lamb waves is observed in the simulation results and experimental results, which further verifies the correctness of the analytical model prediction.
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spelling doaj.art-bbac2585f0134ad39b9ea9e78b6de8262023-11-23T17:52:25ZengMDPI AGSensors1424-82202022-02-01223120810.3390/s22031208Modeling and Analysis of Acoustic Emission Generated by Fatigue CrackingWeilei Mu0Yuqing Gao1Yuxue Wang2Guijie Liu3Hao Hu4Engineering College, Ocean University of China, Qingdao 266100, ChinaEngineering College, Ocean University of China, Qingdao 266100, ChinaEngineering College, Ocean University of China, Qingdao 266100, ChinaEngineering College, Ocean University of China, Qingdao 266100, ChinaQingdao Research Institute & School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, ChinaThe acoustic emission (AE) method is a popular and well-developed method for passive structural health monitoring of metallic and composite structures. The current study focuses on the analysis of one of its processes, sound source or signal propagation. This paper discusses the principle of plate wave signal sensing using piezoelectric transducers, and derives an analytical expression for the response of piezoelectric transducers under the action of stress waves, to obtain an overall mathematical model of the acoustic emission signal from generation to reception. The acoustic emission caused by fatigue crack extension is simulated by a finite element method, and the actual acoustic emission signal is simulated by a pencil lead break experiment. The results predicted by the mathematical model are compared with the experimental results and the simulation results, respectively, and show good agreement. In addition, the presence of obvious S0 mode Lamb waves is observed in the simulation results and experimental results, which further verifies the correctness of the analytical model prediction.https://www.mdpi.com/1424-8220/22/3/1208acoustic emission (AE)fatigue crack growthpredictive modeling
spellingShingle Weilei Mu
Yuqing Gao
Yuxue Wang
Guijie Liu
Hao Hu
Modeling and Analysis of Acoustic Emission Generated by Fatigue Cracking
Sensors
acoustic emission (AE)
fatigue crack growth
predictive modeling
title Modeling and Analysis of Acoustic Emission Generated by Fatigue Cracking
title_full Modeling and Analysis of Acoustic Emission Generated by Fatigue Cracking
title_fullStr Modeling and Analysis of Acoustic Emission Generated by Fatigue Cracking
title_full_unstemmed Modeling and Analysis of Acoustic Emission Generated by Fatigue Cracking
title_short Modeling and Analysis of Acoustic Emission Generated by Fatigue Cracking
title_sort modeling and analysis of acoustic emission generated by fatigue cracking
topic acoustic emission (AE)
fatigue crack growth
predictive modeling
url https://www.mdpi.com/1424-8220/22/3/1208
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AT guijieliu modelingandanalysisofacousticemissiongeneratedbyfatiguecracking
AT haohu modelingandanalysisofacousticemissiongeneratedbyfatiguecracking