Acoustic Emission Behaviors in Rock Failure Process

Research on Relationship Between Parameters Correlation of Acoustic Emission and Rock Failure

Analyzes that granite AE signal parameters under uniaxial loading by that way of Pearson linear correlation, research that correlation of characterization parameters within that separate group with various characteristics, and analyzes that relationship between each parameter and destruction. This study shows that: impact, events and ringing are mainly used to describe the damage degree of rock...

Acoustic Emission Based In-process Monitoring in Robot Assisted Polishing

Characterisation of Acoustic Emission Sources in a Rock Salt Specimen under Triaxial Load

This study presents the application of an automated moment tensor analysis procedure on microcracks which were generated during a triaxial compression test of a cylindrical rock salt specimen (diameter 150 mm, length 300 mm). The acoustic emission signals were detected in a frequency range between 20 kHz and 1 MHz using 12 acoustic emission sensors mounted on the surface of the specimen cylinde...

Flexural Toppling Failure in Rock Slopes: From Theory to Applications

Toppling failure is one of the most common modes of failure of rock slopes in layered rock strata. Flexural toppling is one of the well-known modes of the failure. This type of failure occurs due to bending stress. In this article, a brief yet comprehensive review of toppling failure is presented. Firstly, the conditions and general mechanism of the failure are described. Then, experimental, th...

Acoustic Emission Monitoring for Ultrasonic Cavitation Based Dispersion Process

In the manufacturing of micro/nanocomposite materials, micro/nanoparticles need to be dispersed evenly into the base materials. However, due to their high surface-to-volume ratio and high surface energy, the micro/nanoparticles tend to agglomerate and cluster together. Ultrasonic cavitation is effective to disperse micro/nanoparticles. However, works on correlating the cavitation parameters wit...