FE-studies on Shear Localization in an Anistropic Micro-polar Hypoplastic Granular Material |
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| Authors: | J. Tejchman A. Niemunis |
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| Affiliation: | (1) Faculty for Civil and Environmental Engineering, Gdansk University of Technology, Gdansk, Poland;(2) Institute for Soil Mechanics and Foundation Engineering, Ruhr University of Bochum, Bochum, Germany |
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| Abstract: | The effect of transverse isotropy on shear localization in cohesionless granular materials is numerically investigated upon monotonous plane strain deformation paths using a hypoplastic constitutive model enhanced by micro-polar terms. In this model, a so-called density function is reformulated and made anisotropic. Dense sand specimens under constant lateral pressure are numerically tested for uniform and stochastic distributions of the initial void ratio and for two different mean grain diameters. |
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| Keywords: | Anisotropy Bedding plane Granular material Hypoplasticity Micro-polar theory Shear zone |
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