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-expo- nential curves, showing universal features which are observed here for the first time and could be important in order to understand more in detail rock fractures dynamics.
Acoustic Emissions in Rock Deformation and Failure: New Insights from Q-Statistical Analysis
Sergio C. Vinciguerra;Annalisa Greco;Alessandro Pluchino;Andrea Rapisarda;
2023-01-01
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-expo- nential curves, showing universal features which are observed here for the first time and could be important in order to understand more in detail rock fractures dynamics.File | Dimensione | Formato | |
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