Results 1 to 10 of about 654 (167)

Identifying the most explainable fault ruptured of the 2018 Palu-Donggala earthquake in Indonesia using coulomb failure stress and geological field report

open access: yesGeodesy and Geodynamics, 2020
This study investigates the relation between the Coulomb failure stress of the mainshock with the aftershocks sequence following the 2018 Palu-Donggala earthquake in Indonesia.
Endra Gunawan   +3 more
doaj   +3 more sources

Strong Aftershock Study Based on Coulomb Stress Triggering—A Case Study on the 2016 Ecuador Mw 7.8 Earthquake

open access: yesApplied Sciences, 2017
The 2016 Ecuador M 7.8 earthquake ruptured the subduction zone boundary between the Nazca plate and the South America plate. This M 7.8 earthquake may have promoted failure in the surrounding crust, where six M ≥ 6 aftershocks occurred following this ...
Jianchao Wu   +3 more
doaj   +3 more sources

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

The Mohr–Coulomb criterion for intact rock strength and friction – a re-evaluation and consideration of failure under polyaxial stresses [PDF]

open access: yesSolid Earth, 2016
Darley Dale and Pennant sandstones were tested under conditions of both axisymmetric shortening and extension normal to bedding. These are the two extremes of loading under polyaxial stress conditions.
A. Hackston, E. Rutter
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

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

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

Study on Coulomb Stress Triggering of the April 2015 M7.8 Nepal Earthquake Sequence

open access: yesInternational Journal of Geophysics, 2016
In April 2015, a M7.8 earthquake occurred less than one month before a M7.3 earthquake near Kodari, Nepal. The Nepal earthquake sequences also include four larger (M > 6) aftershocks. To reveal the interrelation between the main shock and the aftershocks,
Jianchao Wu   +3 more
doaj   +1 more source

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