Publications associées à Frottement

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

A story of two transitions: From adhesive to abrasive wear and from ductile to brittle regime

Jean-François Molinari, Sacha Zenon Wattel

Atomistic simulations performed with a family of model potential with tunable hardness have proven to be a great tool for advancing the understanding of wear processes at the asperity level. They have been instrumental in finding a critical length scale, w ...

2024

Fault roughness controls injection-induced seismicity

Simon Guérin-Marthe, Lei Wang

Surface roughness ubiquitously prevails in natural faults across various length scales. Despite extensive studies highlighting the important role of fault geometry in the dynamics of tectonic earthquakes, whether and how fault roughness affects fluid-induc ...

Washington2024

Understanding snow saltation parameterizations: lessons from theory, experiments and numerical simulations

Michael Lehning, Daniela Brito Melo, Armin Sigmund

Drifting and blowing snow are important features in polar and high mountain regions. They control the surface mass balance in windy conditions and influence sublimation of snow and ice surfaces. Despite their importance, model representations in weather an ...

2024

Capsizing due to friction-induced twist in the failure of stopper knots

Pedro Miguel Nunes Pereira de Almeida Reis, Paul Johanns

We investigate the failure mechanism of stopper knots, with a particular focus on the figure -8 knot as a representative example. Stopper knots are widely used in climbing, sailing, racket stringing, and sewing to maintain tension in ropes, strings, or thr ...

Elsevier2024

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

Stick-slip-to-stick transition of liquid oscillations in a U-shaped tube

François Gallaire, Alessandro Bongarzone

The nonlinear decay of oscillations of a liquid column in a U-shaped tube is investigated within the theoretical framework of the projection method formalized by Bongarzone et al. [Chaos 31, 123124 (2021)]. Starting from the full hydrodynamic system supple ...

Amer Physical Soc2024

Modeling of rough contact interfaces with trapped compressive liquid pockets

Jean-François Molinari, Guillaume Anciaux, Parissasadat Alavi, Julie Richard, Loris Rocchi

Boundary and mixed lubrication are usually used to reduce friction in sheet metal form- ing. In the boundary lubrication regime load is mainly carried by contacting asperities. Therefore, the tribological problem can be solved in the dry case using a geome ...

2023

Revisiting the role of friction coefficients in granular collapses: confrontation of 3-D non-smooth simulations with experiments

Gauthier Paul Daniel Marie Rousseau

In this paper, transient granular flows are examined both numerically and experimentally. Simulations are performed using the continuous three-dimensional (3-D) granular model introduced in Daviet & Bertails-Descoubes (ACM Trans. Graph., vol. 35, no. 4, 20 ...

Cambridge2023

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Frottement

Modeling friction and wear using an adaptive discrete-continuum coupling

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

A story of two transitions: From adhesive to abrasive wear and from ductile to brittle regime

Fault roughness controls injection-induced seismicity

Understanding snow saltation parameterizations: lessons from theory, experiments and numerical simulations

Capsizing due to friction-induced twist in the failure of stopper knots

Frictional weakening leads to unconventional singularities during dynamic rupture propagation

Stick-slip-to-stick transition of liquid oscillations in a U-shaped tube

Modeling of rough contact interfaces with trapped compressive liquid pockets

Revisiting the role of friction coefficients in granular collapses: confrontation of 3-D non-smooth simulations with experiments

Graph Chatbot

Chattez avec Graph Search

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

Modeling friction and wear using an adaptive discrete-continuum coupling

Fault roughness controls injection-induced seismicity

A story of two transitions: From adhesive to abrasive wear and from ductile to brittle regime

Understanding snow saltation parameterizations: lessons from theory, experiments and numerical simulations

Capsizing due to friction-induced twist in the failure of stopper knots

Stick-slip-to-stick transition of liquid oscillations in a U-shaped tube

Frictional weakening leads to unconventional singularities during dynamic rupture propagation

Modeling of rough contact interfaces with trapped compressive liquid pockets

Revisiting the role of friction coefficients in granular collapses: confrontation of 3-D non-smooth simulations with experiments