Phased acoustic emission sensor array for localizing radial and axial positions of defects in hollow structures

Lu, Zongqing; Zhang, Tonghao; Chen, Enpei; Ozevin, Didem; Li, Hongyu

doi:10.1016/j.measurement.2019.107223

Cited by 30 publications

(14 citation statements)

References 22 publications

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“…For the location determination of micro-seismic sources, loglogistic distribution was utilized. Zhang et al [132] used a phased array method for the localization of radial and axial defects by considering the original propagation path of waves. The Time of Flight (TOF) difference for each sensor provided the basis for this method, which develops trajectory differences.…”

Section: ) Source Localization With Known Velocitymentioning

confidence: 99%

State-of-the-Art Review on the Acoustic Emission Source Localization Techniques

Hassan¹,

Mahmood²,

Yahya

et al. 2021

IEEE Access

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The acoustic emission technique has been applied successfully for the identification, characterization, and localization of deformations in civil engineering structures. Numerous localization techniques, such as Modal Acoustic Emission, Neural Networks, Beamforming, and Triangulation methods with or without prior knowledge of wave velocity, have been presented. Several authors have conducted in-depth research in the localization of AE sources. However, existing review papers do not focus on the performance evaluation of existing source localization techniques. This paper discusses these techniques based on the number of sensors used and the geometry of the structures of interest. Furthermore, it evaluates them on the basis of their performance. At the end of this paper, a comparative analysis of existing methods has been presented based on their basic principles, key strengths, and limitations. A deep learning circular sensor cluster-based solution has the potential to provide a low-cost reliable localization solution for acoustic emission sources.

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Section: ) Source Localization With Known Velocitymentioning

confidence: 99%

State-of-the-Art Review on the Acoustic Emission Source Localization Techniques

Hassan¹,

Mahmood²,

Yahya

et al. 2021

IEEE Access

View full text Add to dashboard Cite

show abstract

“…The distortions of AE continuous and semicontinuous sources (i.e., untemporal) were evaluated in time and frequency domains. Moreover, a study [40] introduced a novel strategy of phased array AE localisation by considering the actual trajectory of the propagating elastic waves in order to localise both the defect axial and radial positions.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation Using Acoustic Emission Technique for Quasi-Static Cracks in Steel Pipes Assessment

et al. 2021

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Acoustic emission (AE) is a phenomenon where transient waves of stress are generated during deformed material, which is applied to detect and monitor the cracks and cracks propagation. The majority of related literature studied simulated wave sources, which were utilized for a single point of a pipe and have been strictly controlled by temporal characteristics. Therefore, the realistic wave sources which do not have known temporal characteristics are studied in the present work. The realistic source is quasi-static crack propagation under three-point bending. The distortions of AE signals are experimentally evaluated by testing the AE signals of crack propagation using simulated sources. A variety of stress intensities are applied on a steel pipe to determine the effect of stress type and intensity on the characteristics of the source using time and frequency domains. Machines are mounted on the steel pipe to locate and reconstitute the features of time and frequency domain of the AE sources. It is concluded that the AE energy was sensitive to the crack size which was concerning to the transition of plane-stress to plane-strain. The potential of AE technique for identifying the nature, intensity and location of crack propagation is demonstrated.

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“…The huge potential for safety hazards, due to undetected damages, has made the structural health of cylindrical pressure vessels and tanks a perpetual concern for researchers. SHM strategies based on acoustic emissions (AE) have been widely used [ 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 ] over the last several years. Traditional techniques work very well when the wave velocity variation in a cylindrical structure is low, the structure can be assumed to be isotropic, and the arrival times of the waves at all sensor locations are known [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Experimental Research on Rapid Localization of Acoustic Source in a Cylindrical Shell Structure without Knowledge of the Velocity Profile

Yin

Cui

et al. 2021

Sensors

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Acoustic source localization in a large pressure vessel or a storage tank-type cylindrical structure is important in preventing structural failure. However, this can be challenging, especially for cylindrical pressure vessels and tanks that are made of anisotropic materials. The large area of the cylindrical structure often requires a substantial number of sensors to locate the acoustic source. This paper first applies conventional acoustic source localization techniques developed for the isotropic, flat plate-type structures to cylindrical structures. The experimental results show that the conventional acoustic source localization technique is not very accurate for source localization on cylindrical container surfaces. Then, the L-shaped sensor cluster technique is applied to the cylindrical surface of the pressure vessel, and the experimental results prove the applicability of using this technique. Finally, the arbitrary triangle-shaped sensor clusters are attached to the surface of the cylindrical structure to locate the acoustic source. The experimental results show that the two acoustic source localization techniques using sensor clusters can be used to monitor the location of acoustic sources on the surface of anisotropic cylindrical vessels, using a small number of sensors. The arbitrarily triangle-shaped sensors can be arbitrarily placed in a cluster on the surface of the cylindrical vessel. The results presented in this paper provide a theoretical and experimental basis for the surface acoustic source localization method for a cylindrical pressure vessel and lay a theoretical foundation for its application.

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Phased acoustic emission sensor array for localizing radial and axial positions of defects in hollow structures

Cited by 30 publications

References 22 publications

State-of-the-Art Review on the Acoustic Emission Source Localization Techniques

State-of-the-Art Review on the Acoustic Emission Source Localization Techniques

Experimental Investigation Using Acoustic Emission Technique for Quasi-Static Cracks in Steel Pipes Assessment

Experimental Research on Rapid Localization of Acoustic Source in a Cylindrical Shell Structure without Knowledge of the Velocity Profile

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