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Habilitation à diriger des recherches. Debregeas Georges
This work aims at describing the mechanical response of divided materials such as aqueous foams and granular materials. These systems exhibit a solid-like behavior... -
Effect of particle shape non-convexity on the rheology of granular media : 3D...
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Failure of cemented granular materials under simple compression - Experiments...
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Force Transmission in Cohesive Granular Media
We use numerical simulations to investigate force and stress transmission in cohesive granular media covering a wide class of materials encountered in nature and... -
Discrete numerical methods and applications
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On enhanced descend algorithms for solving frictional multi-contact problems ...
In this article, we present various numerical methods to solve multi-contact problems within the Non-Smooth Discrete Element Method. The techniques considered to solve... -
Discrete-element modeling of granular materials
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Synthesis and structure determination of CaSi1/3B2/3O8/3, a new calcium boros...
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Rheology of three-dimensional packings of aggregates: Microstructure and effe...
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Identification of avalanche precursors by acoustic probing in the bulk of til...
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Mechanics of Arctic sea ice and granular materials : two media, two approaches
Two approaches to study the mechanical behaviour of Arctic sea ice in one hand, and of granular media on the other hand, are presented in this thesis. First, a... -
Airslide flows, Part 1--Experiments, review and extension
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Yield surfaces and plastic potentials of cemented granular materials from dis...
This paper presents a numerical investigation on the mechanical behavior of cemented granular materials by means of discrete element simulations. In particular, two... -
Discrete Element Method studies of the collision of one rapid sphere on 2D an...
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Analytical solution of the $\mu(I)-$rheology for fully developed granular flo...
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Flow of granular material in rotating drums
The rheology of granular flows is the subject of many experimental and theoretical works. Previous studies of granular flows performed in rotating drums have shown... -
Diffusive Wave Spectroscopy of a random close packing of spheres
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A biaxial apparatus for the study of heterogeneous and intermittent strains i...
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Slow Relaxation and Aging Phenomena at the Nanoscale in Granular Materials
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