56 citations · 176 across the 11 of their papers we have counts for
11 papers
Roughness-controlled Tribocharging Governs Friction in Dry Glass Contacts
Liang Peng, Begum Demirkurt, Thibault Roch +3
Friction is commonly reduced by polishing surfaces, based on the idea that roughness enhances mechanical interlocking and thus friction. Here we show that, for dry glass-glass cont…
The Decrease of Static Friction Coefficient with Interface Growth from Single to Multiasperity Contact
Liang Peng, Thibault Roch, Daniel Bonn +1
The key parameter for describing frictional strength at the onset of sliding is the static friction coefficient. Yet, how the static friction coefficient emerges at the macroscale…
A finite geometry, inertia assisted coarsening-to-complexity transition in homogeneous frictional systems
Thibault Roch, Efim A. Brener, Jean-François Molinari +1
The emergence of statistical complexity in frictional systems, manifested in broad distributions of various observables, is not yet understood. We study this problem in velocity-dr…
The dynamics of unsteady frictional slip pulses
Anna Pomyalov, Fabian Barras, Thibault Roch +2
Self-healing slip pulses are major spatiotemporal failure modes of frictional systems, featuring a characteristic size and a propagation velocity ( is time…
Dynamic crack front deformations in cohesive materials
Thibault Roch, Mathias Lebihain, Jean-François Molinari
Crack fronts deform due to heterogeneities, and inspecting these deformations can reveal local variations of material properties, and help predict out of plane damage. Current mode…
Quasi-static crack front deformations in cohesive materials
Mathias Lebihain, Thibault Roch, Jean-François Molinari
When a crack interacts with material heterogeneities, its front distorts and adopts complex tortuous configurations that are reminiscent of the energy barriers encountered during c…
Velocity-driven frictional sliding: Coarsening and steady-state pulse trains
Thibault Roch, Efim A. Brener, Jean-Francois Molinari +1
Frictional sliding is an intrinsically complex phenomenon, emerging from the interplay between driving forces, elasto-frictional instabilities, interfacial nonlinearity and dissipa…
Earthquake Nucleation along Faults with Heterogeneous Weakening Rate
Mathias Lebihain, Thibault Roch, Marie Violay +1
The transition from quasi-static slip growth to dynamic rupture propagation constitutes one possible scenario to describe earthquake nucleation. If this transition is rather well u…
Stick-slip phenomena and Schallamach waves captured using reversible cohesive elements
Evelyne Ringoot, Thibault Roch, Jean-François Molinari +2
Reversibility is of paramount importance in the correct representation of surface peeling in various physical settings, ranging from motility in nature, to gripping devices in robo…
The emergence of crack-like behavior of frictional rupture: Edge singularity and energy balance
Fabian Barras, Michael Aldam, Thibault Roch +3
The failure of frictional interfaces -- the process of frictional rupture -- is widely assumed to feature crack-like properties, with far-reaching implications for various discipli…
The emergence of crack-like behavior of frictional rupture: The origin of stress drops
Fabian Barras, Michael Aldam, Thibault Roch +3
The process of frictional rupture, i.e. the failure of frictional systems, abounds in the technological and natural world around us, ranging from squealing car brake pads to earthq…