Publications by authors named "Elsa Bayart"
Article Synopsis
- Seismic faults release stored stress from tectonic movement, with slow-slip events significantly influencing the frequency of earthquakes but their mechanics are not fully understood.
- Laboratory experiments show that slow-slip regions can act as nucleation centers for seismic ruptures, making it easier for earthquakes to occur by reducing fault shear resistance.
- The study highlights that slow-slip dynamics evolve under different conditions, emphasizing the need to consider these changes in order to improve seismic hazard mitigation strategies.
Frictional resistance to slip, τ, is determined by the real area of contact, A, and the shear strength of the contacts forming the frictional interface. We perform simultaneous high-speed local measurements of τ and A at the tail of propagating rupture fronts. Rate dependence is investigated over 2 orders of magnitude of local slip velocities which reach up to ∼1 m/s.
View Article and Find Full Text PDFWe study rupture fronts propagating along the interface separating two bodies at the onset of frictional motion via high-temporal-resolution measurements of the real contact area and strain fields. The strain measurements provide the energy flux and dissipation at the rupture tips. We show that the classical equation of motion for brittle shear cracks, derived by balancing these quantities, well describes the velocity evolution of frictional ruptures.
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