Publications associées à Dislocation Motion and the Microphysics of Flash Heating and Weakening of Faults during Earthquakes

Frictional weakening leads to unconventional singularities during dynamic rupture propagation

Marie Estelle Solange Violay, Mathias Alexandre David Lebihain, François Xavier Thibault Passelègue, Federica Paglialunga

Earthquakes i.e. frictional ruptures, are commonly described by singular solutions of shear crack motions. These solutions assume a square root singularity order around the rupture tip and a constant shear stress value behind it, implying scale-independent ...

2024

Water weakening and the compressive brittle strength of carbonates: Influence of fracture toughness and static friction

Marie Estelle Solange Violay, Barnaby Padraig Fryer, Corentin Jean-Marie Rémi Noël

Water is ubiquitous within the pore space of rocks and has been shown to affect their physical and mechanical behaviour. Indeed, water can act on the rock strength via mechanical (i.e., reducing the effective stresses) or chemical effects (e.g., mineral di ...

2024

Proliferation-driven mechanical compression induces signalling centre formation during mammalian organ development

Sangwoo Kim, Pengfei Xu

Localized sources of morphogens, called signalling centres, play a fundamental role in coordinating tissue growth and cell fate specification during organogenesis. However, how these signalling centres are established in tissues during embryonic developmen ...

Nature Portfolio2024

The effect of in-situ linear stress gradient on the frictional shear rupture growth in 2D

Brice Tanguy Alphonse Lecampion, Regina Fakhretdinova, Alexis Alejandro Sáez Uribe

Deep heat mining requires activation of slip on pre-existing geological discontinuities and the creation of hydraulically conductive fracture networks. Fluid injection or diffusion of ground waters can rise the fluid pressure near pre-existing fractures an ...

2023

Bounding the localized to ductile transition in porous rocks: implications for geo-reservoirs

Marie Estelle Solange Violay, Gabriel Gérard Dominique Meyer

Porous rocks have long been the focus of intense research driven by their importance in our society as host to our most essential resources (oil, gas, water, geothermal energy, etc), yet their rheology remains poorly understood. With increasing depth, poro ...

2023

Single-Well Pore Pressure Preconditioning for Enhanced Geothermal System Stimulation

Marie Estelle Solange Violay, Mathias Alexandre David Lebihain, Barnaby Padraig Fryer

The stress state is an important parameter in terms of both earthquake nucleation and rupture. Here, a new stimulation technique is proposed for Enhanced Geothermal Systems (EGSs), which have previously been burdened with a number of high-profile incidence ...

AMER GEOPHYSICAL UNION2023

Influence of Viscous Lubricant on Nucleation and Propagation of Frictional Ruptures

Marie Estelle Solange Violay, François Xavier Thibault Passelègue, Federica Paglialunga

Fluids are pervasive in the Earth's crust and saturate fractures and faults. The combination of fluids and gouge layers developing along faults can generate fluids of different viscosities. Such viscous fluids were found to influence the reactivation, fric ...

AMER GEOPHYSICAL UNION2023

Determination of Parameters Characteristic of Dynamic Weakening Mechanisms During Seismic Faulting in Cohesive Rocks

Marie Estelle Solange Violay, François Xavier Thibault Passelègue, Chiara Cornelio

While sliding at seismic slip-rates of ∼1 m/s, natural faults undergo an abrupt decrease of shear stress called dynamic weakening. Asperity-scale processes related to flash heating and weakening and, meso-scale (mm-cm) processes involving shear across the ...

AGU2022

Fault roughness’s influence on experimental fault mechanical behavior

Brice Tanguy Alphonse Lecampion, Marie Estelle Solange Violay, Barnaby Padraig Fryer, Seyyedmaalek Momeni, François Xavier Thibault Passelègue, Carolina Giorgetti

Fault slip behavior and earthquake nucleation are often framed within the context of velocity-dependent friction, ranging from velocity-strengthening to velocity-weakening behavior. Previous studies have shown that fault roughness controls the fault slip b ...

2022

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Dislocation Motion and the Microphysics of Flash Heating and Weakening of Faults during Earthquakes

Frictional weakening leads to unconventional singularities during dynamic rupture propagation

Water weakening and the compressive brittle strength of carbonates: Influence of fracture toughness and static friction

Proliferation-driven mechanical compression induces signalling centre formation during mammalian organ development

Drained Clay-Pipe Interface Resistance at Low Normal Stresses and Elevated Temperatures

The effect of in-situ linear stress gradient on the frictional shear rupture growth in 2D

Bounding the localized to ductile transition in porous rocks: implications for geo-reservoirs

Single-Well Pore Pressure Preconditioning for Enhanced Geothermal System Stimulation

Influence of Viscous Lubricant on Nucleation and Propagation of Frictional Ruptures

Determination of Parameters Characteristic of Dynamic Weakening Mechanisms During Seismic Faulting in Cohesive Rocks

Fault roughness’s influence on experimental fault mechanical behavior

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Chattez avec Graph Search

Frictional weakening leads to unconventional singularities during dynamic rupture propagation

Water weakening and the compressive brittle strength of carbonates: Influence of fracture toughness and static friction

Proliferation-driven mechanical compression induces signalling centre formation during mammalian organ development

Drained Clay-Pipe Interface Resistance at Low Normal Stresses and Elevated Temperatures

Bounding the localized to ductile transition in porous rocks: implications for geo-reservoirs

The effect of in-situ linear stress gradient on the frictional shear rupture growth in 2D

Single-Well Pore Pressure Preconditioning for Enhanced Geothermal System Stimulation

Influence of Viscous Lubricant on Nucleation and Propagation of Frictional Ruptures

Determination of Parameters Characteristic of Dynamic Weakening Mechanisms During Seismic Faulting in Cohesive Rocks

Fault roughness’s influence on experimental fault mechanical behavior