Méthode des éléments discrets Soils Instability Discrete element method Reinforcement Granular media Cisaillement Finite element method High confinement Confining pressures X-ray microtomography Experiments Concrete behavior Granular material Modélisation Sand Endommagement CHUTE DE PIERRES Anisotropy Geomaterials Genetic algorithms Dynamique Éléments discrets Béton Mullins effect Multifiber beam Porous media Béton armé Numerical modelling Creep Loading Fracture Permeability Granular materials Matériaux granulaires Digital image correlation Localisation de la déformation High stress Triaxial test Maxwell equations Stress Modelling Homogenisation Optimization Failure Reinforced concrete Triaxial loading Strain localization Mesoscopic scale Rupture Soil-structure interaction Concretes Geosynthetic Essai triaxial Second-order work BIFURCATION Fluage Géomatériaux Snow Finite elements Concrete cracking Modélisation numérique Localisation Homogénéisation Fragmentation Shear band Strain localisation Vocal folds Internal erosion Paper Dynamic Curved spacetime Compaction Numerical model Géosynthétique Second order work Homogenization Confinement Macro-element Numerical modeling Concrete Damage Preferred reference frame Discrete Element Method X-ray tomography Rheology Bifurcation Numerical simulation Microstructure Collapse Suffusion MODELISATION Cavity Diffuse failure Rockfall DEM BETON Impact Inverse analysis Cyclic loading