Results 21 to 30 of about 4,299,358 (286)

Slow Slip Triggers the 2018 Mw 6.9 Zakynthos Earthquake Within the Weakly Locked Hellenic Subduction System, Greece

open access: yesGeochemistry, Geophysics, Geosystems, 2021
Slow slip events (SSEs) at subduction zones can precede large‐magnitude earthquakes and may serve as precursor indicators, but the triggering of earthquakes by slow slip remains insufficiently understood.
Vasso Saltogianni   +5 more
doaj   +1 more source

Axisymmetric adaptive lower bound finite element method based on Mohr-Coulomb yield criterion and second-order cone programming

open access: yesYantu gongcheng xuebao, 2023
The axisymmetric Mohr Coulomb yield surfaces have edges and corners in the three-dimensional stress space, which leads to difficulties in numerical calculation.
SUN Rui 1, ZHANG Jian 2, YANG Junsheng 3, YANG Feng 3
doaj   +1 more source

Failure in Confined Brazilian Tests on Sandstone

open access: yesApplied Sciences, 2021
Strength of rocks in the confined tension region, where the minimum principal stress is tensile, has only infrequently been measured and is not well understood. Quasi-static confined Brazilian tests under a range of confining stresses (2.76 to 27.58 MPa)
Tyler Hagengruber   +4 more
doaj   +1 more source

Stress triggering of the Lushan M7. 0 earthquake by the Wenchuan Ms8. 0 earthquake

open access: yesGeodesy and Geodynamics, 2013
The Wenchuan Ms8. 0 earthquake and the Lushan M7. 0 earthquake occurred in the north and south segments of the Longmenshan nappe tectonic belt, respectively. Based on the focal mechanism and finite fault model of the Wenchuan Ms8.
Wu Jianchao   +4 more
doaj   +1 more source

Applying the Coulomb Failure Function with an optimally oriented plane to the 2008 Mw 7.9 Wenchuan earthquake triggering [PDF]

open access: yes, 2010
The Coulomb failure function (CFF) quantitatively describes static stress changes in secondary faults near the source fault of an earthquake. CFF can be employed to monitor how static stress transfers and then shed some light on the probability of ...
Xu, C., Li, Z., Wang, J., Drummond, J.
core   +1 more source

Importance of forearc topography for the triggering of aftershocks of megathrust earthquakes: insights from mechanical models and the Tohoku-Oki and Maule earthquakes [PDF]

open access: yesSolid Earth
Aftershocks of megathrust earthquakes at subduction zones may be driven by stresses arising from the topography of the forearc. However, the effect of topographic stresses on aftershock triggering is quantitatively not well understood and has been ...
A. Dielforder   +3 more
doaj   +1 more source

Coseismic Stress Change and Viscoelastic Relaxation after the 2008 Great Sichuan Earthquake

open access: yesApplied Sciences, 2022
Long-term stress accumulation influenced by coseismic stress changes and postseismic viscoelastic relaxation is considered critical to triggering giant earthquakes. Nevertheless, how the stress increase is interrupted by aftershocks and how it influences
Chaodi Xie   +6 more
doaj   +1 more source

COMPARING THE HOEK-BROWN AND MOHR-COULOMB FAILURE CRITERIA IN FEM ANALYSIS

open access: yesActa Polytechnica CTU Proceedings, 2021
This paper revisits the issue of a potential substitutions of the Hoek-Brown failure model by the standard Mohr-Coulomb model in the stability analysis of rock masses. The derivation of equivalent shear strength parameters of the Mohr-Coulomb proposed by
Tereza Poklopová   +2 more
doaj   +1 more source

A Coulomb Stress Response Model for Time‐Dependent Earthquake Forecasts

open access: yes, 2022
Seismicity models are probabilistic forecasts of earthquake rates to support seismic hazard assessment. Physics-based models allow extrapolating previously unsampled parameter ranges and enable conclusions on underlying tectonic or human-induced ...
Hainzl, Sebastian (Dr.)   +3 more
core   +2 more sources

Structure Theory for Extended Kepler-Coulomb 3D Classical Superintegrable Systems [PDF]

open access: yes, 2012
The classical Kepler-Coulomb system in 3 dimensions is well known to be 2nd order superintegrable, with a symmetry algebra that closes polynomially under Poisson brackets. This polynomial closure is typical for 2nd order superintegrable systems in 2D and
Willard Miller Jr.   +5 more
core   +1 more source

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