Acoustic wave propagation in austenitic stainless steel AISI 304L: Application examples

Dahmene, Fethi; Laksimi, A.; Hariri, S.; Herve, C.; Jaubert, L.; Cherfaoui, M.; Mouftiez, A.

doi:10.1016/j.ijpvp.2011.12.004

Cited by 7 publications

(3 citation statements)

References 4 publications

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“…During the bending process, the AE energy signals are initiated by the plastic deformation, dislocation, slip, and shear zone of fracture, [36][37][38][39] as shown in Figure 10.…”

Section: The Crack Is Characterized By the Ae Energy Signalsmentioning

confidence: 99%

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Failure Mechanism of Brass with Three V‐Notches Characterized by Acoustic Emission in In Situ Three‐Point Bending Tests

et al. 2016

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The purpose of this study is to characterize the V pre-notched specimens with different relative depth ratio and the relative distance ratio by the AE signals in in situ three-point bending tests. Simultaneously, during the bending process, the V pre-notched specimen is in situ monitored by the opto-digital microscope. In order to analyze the depth of V-notch and the distance between the side V-notches and the middle V-notch effect on the specimens, a finite element analysis model is built by ABAQUS. Combining the in situ images, the AE signals and the finite element analysis (FEA) results, it is found that the experiment results are consistent with the FEA results. It is demonstrated that the amplitude of AE signals can effectively characterize the crack initiation, crack growth, and crack fast instability fracture.

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“…During the bending process, the AE energy signals are initiated by the plastic deformation, dislocation, slip, and shear zone of fracture, [36][37][38][39] as shown in Figure 10.…”

Section: The Crack Is Characterized By the Ae Energy Signalsmentioning

confidence: 99%

“…Dahmene et al [36] considered AE signals that were caused by gliding dislocation and their pinning by solute atoms. Ono [37][38][39] held that primary AE source is originated from brittle fracture, other fast cracking fracture, and micro-or macro-cracks.…”

Section: Ae Signalsmentioning

confidence: 99%

Failure Mechanism of Brass with Three V‐Notches Characterized by Acoustic Emission in In Situ Three‐Point Bending Tests

et al. 2016

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“…Cui et al examined the guided wave propagation characteristics of waveguide in infinite solid medium and mainly discussed the dispersion characteristics of guided waves. Dahmene et al analyzed the influence of waveguide on the propagation of elastic wave and concluded that waveguide influences the wave shape but not the frequency, and the waveguide length exerts no effect on the signal amplitude. Murav'eva et al investigated the influence of the change in transverse section of the waveguide bar on the stability of the monitoring and provided suggestions to improve the stability of the waveguide monitoring.…”

Section: Introductionmentioning

confidence: 99%

A novel acoustic emission monitoring method of cross-section precise localization of defects and wire breaking of parallel wire bundle

Shi

2019

Struct Control Health Monit

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Summary The monitoring and localization of defects and wire breaking of bridge cable are vital to the safe operation of the whole bridge. In this work, an innovative monitoring method that uses waveguides to draw out the steel wires at the end of the cable is proposed. This monitoring method can effectively capture the acoustic emission (AE) signal produced by defects and wire breaking of the cable. The transverse position of the wire breaking can also be accurately located so as to provide basis for the decision making of maintenance department. The pencil‐lead breaks (PLB) test method is utilized to investigate the influence of the transition modes between the waveguide and the sensor and the connection modes between the waveguide and the cone on the AE signal. The PLB test and tensile test method are utilized to examine the AE signal characteristics of different sensors at the end of steel wires. Results showed that the cone transition between the waveguide and the sensor and the welding connection between waveguide and cone exhibit the minimum effect on AE waveform and parameters, such as amplitude, compared with that of the reference sensor without waveguide. In the tensile test, the transverse position of the wire breaking cannot be identified by analyzing the AE signals collected by each senor when the wire breaks, whereas it can be identified in the process of defects before the wire breaks.

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An experimental investigation of propagation the semi-elliptical surface cracks in an austenitic steel

Śnieżek

Ślęzak

Grzelak

et al. 2016

International Journal of Pressure Vessels and Piping

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Acoustic wave propagation in austenitic stainless steel AISI 304L: Application examples

Cited by 7 publications

References 4 publications

Failure Mechanism of Brass with Three V‐Notches Characterized by Acoustic Emission in In Situ Three‐Point Bending Tests

Failure Mechanism of Brass with Three V‐Notches Characterized by Acoustic Emission in In Situ Three‐Point Bending Tests

A novel acoustic emission monitoring method of cross-section precise localization of defects and wire breaking of parallel wire bundle

An experimental investigation of propagation the semi-elliptical surface cracks in an austenitic steel

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