From Stress Chains to Acoustic Emission
Abstract
A numerical scheme using the combined finite-discrete element method is employed to study a model of an earthquake system comprising a granular layer embedded in a formation. When the formation is driven so as to shear the granular layer, a system of stress chains emerges. The stress chains endow the layer with resistance to shear and on failure launch broadcasts into the formation. Furthermore, these broadcasts, received as acoustic emission, provide a remote monitor of the state of the granular layer of the earthquake system.
- Authors:
-
[1];
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of Nevada, Reno, NV (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division; USDOE Laboratory Directed Research and Development (LDRD) Program
- OSTI Identifier:
- 1650613
- Alternate Identifier(s):
- OSTI ID: 1545432
- Report Number(s):
- LA-UR-19-21038
Journal ID: ISSN 0031-9007
- Grant/Contract Number:
- 89233218CNA000001
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 123; Journal Issue: 4; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 58 GEOSCIENCES; Earthquakes; geophysics; granular avalanches; granular chains; granular materials
Citation Formats
Gao, Ke, Guyer, Robert, Rougier, Esteban, Ren, Christopher X., and Johnson, Paul A. From Stress Chains to Acoustic Emission. United States: N. p., 2019.
Web. https://doi.org/10.1103/physrevlett.123.048003.
Gao, Ke, Guyer, Robert, Rougier, Esteban, Ren, Christopher X., & Johnson, Paul A. From Stress Chains to Acoustic Emission. United States. https://doi.org/10.1103/physrevlett.123.048003
Gao, Ke, Guyer, Robert, Rougier, Esteban, Ren, Christopher X., and Johnson, Paul A. Fri .
"From Stress Chains to Acoustic Emission". United States. https://doi.org/10.1103/physrevlett.123.048003. https://www.osti.gov/servlets/purl/1650613.
@article{osti_1650613,
title = {From Stress Chains to Acoustic Emission},
author = {Gao, Ke and Guyer, Robert and Rougier, Esteban and Ren, Christopher X. and Johnson, Paul A.},
abstractNote = {A numerical scheme using the combined finite-discrete element method is employed to study a model of an earthquake system comprising a granular layer embedded in a formation. When the formation is driven so as to shear the granular layer, a system of stress chains emerges. The stress chains endow the layer with resistance to shear and on failure launch broadcasts into the formation. Furthermore, these broadcasts, received as acoustic emission, provide a remote monitor of the state of the granular layer of the earthquake system.},
doi = {10.1103/physrevlett.123.048003},
journal = {Physical Review Letters},
number = 4,
volume = 123,
place = {United States},
year = {2019},
month = {7}
}
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