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arXiv · 1902.08150

From Stress Chains to Acoustic Emission

Ke Gao·Robert Guyer·Esteban Rougier·Christopher X. Ren·Paul A. Johnson
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Abstract

A numerical scheme using the combined finite-discrete element methods (FDEM) 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. These broadcasts, received as acoustic emission, provide a remote monitor of the state of the granular layer, of the earthquake system.

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Ke Gao, Robert Guyer, Esteban Rougier, Christopher X. Ren, Paul A. Johnson. 2019-02-21. From Stress Chains to Acoustic Emission. https://doi.org/10.1103/physrevlett.123.048003

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