Caractérisation des instabilités dans les milieux granulaires : étude expérimentale et simulation

Abstract : In the frame of the study about instabilities in the granular media, un study related. with huge movements of the soil that may be catastrophic in the human and economic fields. Numerical studies realized on granular materials have shown a particular behavior due to certain paths de stresses that may product instability before reaching the criterion of perfect plasticity (Mohr-Coloumb). These results were not yet experimentally found.The subject of this thesis is to experimentally characterize the instability of granular materials, in applicant all the paths of charge in the space of stresses, and to simulate The results with a model of mechanical behavior developed in INP of Grenoble in order to obtain a complete description about the rupture of granular materials.
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Hussein Algali. Caractérisation des instabilités dans les milieux granulaires : étude expérimentale et simulation. Autre. Université Paul Verlaine - Metz, 2008. Français. ⟨NNT : 2008METZ011S⟩. ⟨tel-01752575⟩

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