Localization by Acoustic Emission in Transversely Isotropic Slate

Abstract EN

A method for localization by acoustic emission in transversely isotropic media is developed and validated.

Velocities are experimentally measured and then used to calculate a database of theoretical arrival times for a large number of positions.

During an actual test, positions are assigned by comparing measured arrival times with the database's arrival times.

The method is applied during load tests on slate samples and compared with visual observations of fractures.

The localization method allowed for a good identification of the regions of fracturing at different stages during the test.