Three-dimensional dynamic rupture simulation with a high-order discontinuous Galerkin method on unstructured tetrahedral meshes [PDF]
, 2012 Accurate and efficient numerical methods to simulate dynamic earthquake rupture and wave propagation in complex media and complex fault geometries are needed to address fundamental questions in earthquake dynamics, to integrate seismic and geodetic data ...
Ampuero, Jean-Paul +4 more
core +1 more source
Dizhi lixue xuebao, 2023 In order to obtain the in-situ stress field characteristics and analyze tectonic stability in the Motuo key area of the eastern Himalayan syntaxis, the in-situ stress measurement of one in-situ stress hole and 11 test sections of the Xirang section of ...
ZHANG Bin +7 more
doaj +1 more source
The influence of normal stress and sliding velocity on the frictional behaviour of calcite at room temperature. Insights from laboratory experiments and microstructural observations [PDF]
, 2016 The presence of calcite in and near faults, as the dominant material, cement, or vein fill, indicates that the mechanical behaviour of carbonate-dominated material likely plays an important role in shallow- and mid-crustal faulting. To better understand
Carpenter, B. M +3 more
core +2 more sources
The Mohr–Coulomb criterion for intact rock strength and friction – a re-evaluation and consideration of failure under polyaxial stresses [PDF]
Solid 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
Spectral-element simulations of long-term fault slip: Effect of low-rigidity layers on earthquake-cycle dynamics [PDF]
, 2011 We develop a spectral element method for the simulation of long-term histories of spontaneous seismic and aseismic slip on faults subjected to tectonic loading.
Ampuero, J.-P., Kaneko, Y., Lapusta, N.
core +1 more source
Actuator Fault Detection for Unmanned Ground Vehicles Considering Friction Coefficients
Sensors, 2021 This paper proposes an actuator fault detection method for unmanned ground vehicle (UGV) dynamics with four mecanum wheels. The actuator fault detection method is based on unknown input observers for linear parameter varying systems.
Gyujin Na, Yongsoon Eun
doaj +1 more source
A model for frictional sliding instability on a heterogeneous fault
Annals of Geophysics, 1994 An instability of frictional sliding driven by tectonic stress is assumed to be the source of earthquakes. Empirical slip laws indicate that, under constant ambient conditions, friction depends on time, slip rate and slip history.
A. Piombo, M. Dragoni
doaj +1 more source
Effects of Barriers on Fault Rupture Process and Strong Ground Motion Based on Various Friction Laws
Applied Sciences, 2020 A barrier may induce a supershear rupture on a fault. This paper focuses on two questions: One is whether the existence of a barrier accelerates the propagation speed of a whole fault rupture, and the other is what are the effects of friction laws and ...
Jie Yuan, Jinting Wang, Shoubiao Zhu
doaj +1 more source
Suggestion of advanced regression model on friction angle of fault gouge in South Korea
Journal of Rock Mechanics and Geotechnical Engineering, 2021 Although friction characteristics of fault gouge are important to understand reactivation of fault, behavior of earthquake, and mechanism of slope failure, analysis results of fault gouge have low accuracy mostly than those of soils or rocks due to its ...
Seong-Woo Moon +2 more
doaj +1 more source
Structural biology of ferritin nanocages
FEBS Letters, EarlyView.Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley +1 more source