Evaluation of the condition of a metal using the acoustic-emission method: Prospects and problems

Chernyaeva, E. V.; Galkin, D. I.; Мерсон, Д. Л.; Bigus, G. A.; Bystrova, N. A.; Volkov, A. E.

doi:10.1134/s1061830913030042

Cited by 6 publications

(6 citation statements)

References 3 publications

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“…The development of an analytical model describing the propagation of AE signals in the test object allows reducing the number of preliminary tests required to assess the reduced error of the 1D linear location technique when identifying structural damages [14][15][16][17].…”

Section: Methodsmentioning

confidence: 99%

“…This makes it possible to create a computer simulation of AE signals propagation in the acoustic path of the test object; to determine the average level of the reduced error of the 1D linear location technique depending on the position of the receiving AETs in relation to the AE transmitter, and to define the amplitude level of the recorded acoustic signals. The development of an analytical model describing the propagation of AE signals in the test object allows reducing the number of preliminary tests required to assess the reduced error of the 1D linear location technique when identifying structural damages [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

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Estimation of Acoustic Source Positioning Error Determined by One-Dimensional Linear Location Technique

et al. 2021

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The one-dimensional (1D) linear location technique has been considered as one of the methods for determining the position of acoustic emission (AE) sources in metallic objects. However, this approach does not take into account the heterogeneity of materials and that leads to poor accuracy of AE sources localization. To estimate the positioning error of the linear location technique which is typically used to determine the AE source location a new approach based on the combination of experimental and simulation methods is proposed. This approach for error estimation contains a finite element model construction of the AE signals localization. The model consists of transmitting and receiving transducers mounted on the test object, the frequency response of which selected close to the characteristics of acoustic emission transducers applied in the preliminary experiments. The application of the approach in current research showed that a reduced positioning error on a flat steel plate reaches 15%. The proposed technique can be used to optimize the number of preliminary tests required to calculate the reduced error of the 1D linear location technique applied for the AE sources localization during the inspection of the structure.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Estimation of Acoustic Source Positioning Error Determined by One-Dimensional Linear Location Technique

et al. 2021

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“…In paper [4] the author shows the influence of high-frequency component in AFC of the test signal on the AE defect's nature. The papers [5] describe a changing in the spectral density of the signals to higher frequency with increasing length of the fatigue crack.…”

Section: Problems In Research Of Ae Signal's Spectral Characterismentioning

confidence: 99%

“…Papers [4,5] describe the dependence in types and nature of AE signals from the various frequency components. In paper [4] the author shows the influence of high-frequency component in AFC of the test signal on the AE defect's nature.…”

Section: Problems In Research Of Ae Signal's Spectral Characterismentioning

confidence: 99%