How solid interfaces break before sliding ? This question is a challenge for earthquake mechanics, but also for the development of materials with controlled mechanical properties.
In the lab, we develop experimental studies to understand the interfacial rupture mechanisms, using high speed imaging, strain measurements, Digital Image Correlation.
Collaborators : Y. Faure (ENS Lyon), I. Svetlizky (Harvard Univ.), J. Fineberg (Hebrew Univ.)
Fracture of dispersed media
Fracture can propagate in a cohesive granular material when loaded. But fractures also develop in an immersed granular material impacted by a solid.
We under the origin of cohesion in such system and we characterize the fracture type.
Collaborators : J.J.S. Jerome, S. Dagois-Bohy (LMFA, Univ. Lyon)
Statistical Physics of disordered media
We aimed to describe confined elastic systems (crumpled sheet, confined rods) as a frustated and disordered system.
We focused on the emergence of order under the effect of confinement.
Collaborators : M. Adda-Bedia (ENS de Lyon), A. Boudaoud (Ecole Polytechnique), S. Deboeuf (Sorbonne Univ.), G. Seizilles
Fracture in thin sheets
We considered the propagation of one or two cracks in a thin sheet.
The cracks paths result from the strong coupling between the singular crack tip and the elastic deformations of the sheet.
Collaborators : M. Adda-Bedia (ENS de Lyon), A. Boudaoud (Ecole Polytechnique)
Sediment transport in rivers
Artelia Group, ANR C3E2*
Numerical modelling of the solid transport in the Loire estuary, under conditions of climate changes,
to provide a model of the modification of the bed morphology to predict the evolution of the estuary (salinity, vegetation, mud).
