Acoustic Emissions in Rock Deformation and Failure: New Insights from Q-Statistical Analysis.
Entropy (Basel)
; 25(4)2023 Apr 21.
Article
em En
| MEDLINE
| ID: mdl-37190489
ABSTRACT
We propose a new statistical analysis of the Acoustic Emissions (AE) produced in a series of triaxial deformation experiments leading to fractures and failure of two different rocks, namely, Darley Dale Sandstone (DDS) and AG Granite (AG). By means of q-statistical formalism, we are able to characterize the pre-failure processes in both types of rocks. In particular, we study AE inter-event time and AE inter-event distance distributions. Both of them can be reproduced with q-exponential curves, showing universal features that are observed here for the first time and could be important in order to understand more in detail the dynamics of rock fractures.
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MEDLINE
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En
Ano de publicação:
2023
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Article