Detection and localization of debonding damage in composite-masonry strengthening systems with the Acoustic Emission technique

Verstrynge, Els; Balen, Koen Van; Wevers, Martine; Ghiassi, Bahman; Oliveira, Daniel V.

doi:10.1201/b19381-84

Cited by 7 publications

(3 citation statements)

References 11 publications

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“…In this case, the damage generate a localized energy releasing, that can be felt as a crack (and then as an AE) [12]. Fundamental in the analysis of structure crack signals in the determination of the damage evolution [6], [8], [13]- [16], are the maximum amplitude and the number of peaks in the AE signal.…”

Section: Introductionmentioning

confidence: 99%

Structural health monitoring system design for historical heritage building

Carnì

Scuro

Olivito

et al. 2022

J. Phys.: Conf. Ser.

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Structural Health Monitoring (SHM) systems play an important role in the defence of historical heritage. In fact, it is necessary to monitor and analyse the information that highlight the state of health of the structure. Unfortunately, in the realization of the monitoring system it is necessary to place several sensor nodes in place where it is not simple or possible the connection to the mains power supply. Moreover, it is necessary the fast detection of critical situation in which the state of conservation of an historical building can deteriorate. For these reasons in the paper is proposed the design of a low power consumption long range communication system. This design is proposed as an innovation of previous work, and the use of machine learning an algorithm to analyse the data.

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Section: Introductionmentioning

confidence: 99%

Structural health monitoring system design for historical heritage building

Carnì

Scuro

Olivito

et al. 2022

J. Phys.: Conf. Ser.

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“…Acoustic emission (AE) is a phenomenon in which the transient elastic wave has been generated by the materials' localized source energy released rapidly [1]. Thanks to the dynamic nondestructive detecting method of AE technology, currently AE testing are widely used in the research of materials' internal defects, monitoring the strength of aircraft components and so on [2,3]. The main purpose of this testing technology is to determine the location of AE source, and also exert a crucial part in the evaluation of AE instruments, its accuracy directly reflects the degree of coincidence between the location of AE source and the actual position of the active defect source.…”

Section: Introductionmentioning

confidence: 99%

Acoustic emission signal source localization on plywood surface with cross-correlation method

Dai

et al. 2018

J Wood Sci

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The high-speed data acquisition equipment which is based on NI and LabVIEW software was used to establish the acoustic emission (AE) signal collection platform, and adopted wavelet analysis method to extract the weak of AE signal waveform from noise, aiming at the localization of AE source on plywood surface. The signal cross-correlation analysis method is used to determine the time difference between the AE signals and the different sensors,so that further calculates the average propagation speed of AE signal on the plywood surface. A kind of AE signal source localization method which is based on the cross-correlation method was proposed according to the principle of geometric positioning, and verified by means of the testing experiment which selected the lead break to simulate AE source. This paper has shown that wavelet analysis can effectively extract AE signal waveform, and the localization method based on cross-correlation principle can precisely calibrate the position of AE signal source.

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“…Damage evaluation by Acoustic Emission (AE) signals is a promising technique for the noninvasive and continuous monitoring of concrete structures [1][2][3]. The AEs are used in order to realize noninvasive and continuous structural health monitoring system [4][5][6][7][8][9][10][11], and to obtain the state of stress in different types of materials [12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Damage Analysis of Concrete Structures by Means of B-Value Technique

Carnì¹,

Scuro²,

Lamonaca³

et al. 2017

IJC

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The paper deals with the non-destructive monitoring of civil engineering structures damage by the Acoustic Emission (AE) of the cracks that can occur inside the concrete material. The damage of the concrete material has been evaluated by analyzing AE signals during the compression tests. In order to prevent the loss or partial acquisition of signals a multi-triggering acquisition modality and adaptive evaluation of the Acquisition Time Interval (ATI) have been used. The analysis is based on the Gutenberg–Richter law (GBR), that is the relationship between the magnitude and total number of events of earthquakes in established region and time period. Through the GBR law the b-value was valued and used to select the critical AE signals that identify damage events. Experimental tests have allowed to highlight correspondence between the critical AE signals and the damage in the material.

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Detection and localization of debonding damage in composite-masonry strengthening systems with the Acoustic Emission technique

Cited by 7 publications

References 11 publications

Structural health monitoring system design for historical heritage building

Structural health monitoring system design for historical heritage building

Acoustic emission signal source localization on plywood surface with cross-correlation method

Damage Analysis of Concrete Structures by Means of B-Value Technique

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