Sheared granular matter and the empirical relations of seismicity.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.105.024901
Abstract: The frictional instability associated with earthquake initiation and earthquake dynamics is believed to be mainly controlled by the dynamics of fragmented rocks within the fault gauge. Principal features of the emerging seismicity (e.g., intermittent dynamics… read more here.
Keywords: seismicity; granular matter; sheared granular; empirical relations ... See more keywords
Strain localization in dry sheared granular materials: A compactivity-based approach.
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review E"
DOI: 10.1103/physreve.98.022906
Abstract: Shear banding is widely observed in natural fault zones as well as in laboratory experiments on granular materials. Understanding the dynamics of strain localization under different loading conditions is essential for quantifying strength evolution of… read more here.
Keywords: strength; dry sheared; granular materials; strain localization ... See more keywords
Continuously Sheared Granular Matter Reproduces in Detail Seismicity Laws.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.122.218501
Abstract: We introduce a shear experiment that quantitatively reproduces the main laws of seismicity. By continuously and slowly shearing a compressed monolayer of disks in a ringlike geometry, our system delivers events of frictional failures with… read more here.
Keywords: continuously sheared; sheared granular; reproduces detail; seismicity ... See more keywords
X-Ray Tomography Investigation of Cyclically Sheared Granular Materials.
Sign Up to like & getrecommendations! Published in 2021 at "Physical review letters"
DOI: 10.1103/physrevlett.126.048002
Abstract: We perform combined x-ray tomography and shear force measurements on a cyclically sheared granular system with highly transient behaviors, and obtain the evolution of microscopic structures and macroscopic shear force during the shear cycle. We… read more here.
Keywords: cyclically sheared; granular materials; tomography investigation; sheared granular ... See more keywords
Equivalence of Fluctuation-Dissipation and Edwards' Temperature in Cyclically Sheared Granular Systems.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.228004
Abstract: Using particle trajectory data obtained from x-ray tomography, we determine two kinds of effective temperatures in a cyclically sheared granular system. The first one is obtained from the fluctuation-dissipation theorem which relates the diffusion and… read more here.
Keywords: granular systems; cyclically sheared; fluctuation dissipation; sheared granular ... See more keywords