Simulation of Shear Localization in Granular Bodies within Gradient-Enhanced Hypoplasticity
نویسندگان
چکیده
The paper presents a FE-analysis of a spontaneous shear localization inside non-cohesive sand during plane strain compression. The calculations were carried out with a gradient-enhanced hypoplastic constitutive law. The hypoplastic law can reproduce essential features of granular bodies depending on the void ratio, pressure level and deformation direction. To model the thickness of shear zones, a characteristic length of the microstructure was incorporated via the second gradient of the modulus of the deformation rate. To determine the effect of micro-structure, the analysis was performed with different characteristic lengths for the same specimen size.
منابع مشابه
Fe-investigations on Shear Localizations in Granular Bodies within Hypoplasticity
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