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Title: From Stress Chains to Acoustic Emission

Journal Article · · Physical Review Letters
ORCiD logo [1];  [2];  [1];  [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of Nevada, Reno, NV (United States)
+ Show Author Affiliations

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.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE; USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1650613
Report Number(s):
LA-UR--19-21038
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 4 Vol. 123; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (28)

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Cited By (2)

Lagrangian‐based Simulations of Hypervelocity Impact Experiments on Mars Regolith Proxy journal July 2020
A Silent Build-up in Seismic Energy Precedes Slow Slip Failure in the Cascadia Subduction Zone preprint January 2019

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58 GEOSCIENCES
Earthquakes
geophysics
granular avalanches
granular chains
granular materials