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Approche micromécanique de matériaux granulaires cohésifs en génie civil
This communication presents a micromechanical approach of the behavior and the rupture of cohesive granular materials. This approach takes into account the local interactions of contact, friction and cohesion between particles. It allows an individualized follow-up of the kinematics of particles and gives indications on local phenomena such as the stresses concentrations, strains localization, the initiation and propagation of rupture. This approach is illustrated on two examples interesting civil engineering. On one hand the deformation of a granular beam in flexion allows to find results stemming from the strength of materials in the elastic field and goes beyond because it allows a follow-up until the total ruin of the beam. On the other hand, a study of local parameters sensibility, of the Mohr-Coulomb's criterion of a soil model, shows the dominating influence of the local shearing yield load on the macroscopic cohesion.
Approche micromécanique de matériaux granulaires cohésifs en génie civil
This communication presents a micromechanical approach of the behavior and the rupture of cohesive granular materials. This approach takes into account the local interactions of contact, friction and cohesion between particles. It allows an individualized follow-up of the kinematics of particles and gives indications on local phenomena such as the stresses concentrations, strains localization, the initiation and propagation of rupture. This approach is illustrated on two examples interesting civil engineering. On one hand the deformation of a granular beam in flexion allows to find results stemming from the strength of materials in the elastic field and goes beyond because it allows a follow-up until the total ruin of the beam. On the other hand, a study of local parameters sensibility, of the Mohr-Coulomb's criterion of a soil model, shows the dominating influence of the local shearing yield load on the macroscopic cohesion.
Approche micromécanique de matériaux granulaires cohésifs en génie civil
Delenne, Jean-Yves (author) / El Youssoufi, Moulay Saïd (author) / Bénet, Jean-Claude (author)
Revue Française de Génie Civil ; 8 ; 397-418
2004-05-01
22 pages
Article (Journal)
Electronic Resource
Unknown
micromechanics , granular materials , rupture , cohesion , beam , soils , micromécanique , matériaux granulaires , cohésion , poutre , sols
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