Abstract
The paper deals with three different phenomena concerning shear localization in granular materials using the finite element method. In the first case, the boundary effect on the behaviour of granular materials during plane strain compression was investigated with a micro-polar hypoplastic constitutive model. The numerical calculations were carried out with different initial densities and horizontal boundary conditions. Comparisons of the mobilized internal friction and dilatancy between global and local quantities were made. In the second case, plane strain shearing of an infinite long and narrow granular strip of initially dense sand between two very rough walls under conditions of free dilatancy was investigated within micro-polar hypoplasticity enhanced by viscous terms. The calculations were performed under dynamic conditions with different shear rates. Finally, grain crushing was investigated during plane strain shearing of an infinite long granular strip with a micro-polar hypoplastic model enriched by formulae of breakage mechanics.
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Tejchman, J. (2010). Effect of Boundary, Shear Rate and Grain Crushing on Shear Localization in Granular Materials within Micro-polar Hypoplasticity. In: Kuczma, M., Wilmanski, K. (eds) Computer Methods in Mechanics. Advanced Structured Materials, vol 1. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-05241-5_19
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DOI: https://doi.org/10.1007/978-3-642-05241-5_19
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-05240-8
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