DEM-Based Modeling of Shear Localization and Transition of Geomedium to Unstable Deformation
The authors develop the DEM-based procedure for the numerical testing of granular samples under non-uniform compression with different load programs. The algorithm of initial packings of particles is proposed. The calculations are performed for different methods of loading with suppressed dilatancy...
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| Veröffentlicht in: | Journal of mining science 2022-06, Vol.58 (3), p.357-365 |
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| container_title | Journal of mining science |
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| creator | Zhurkina, D. S. Klishin, S. V. Lavrikov, S. V. Leonov, M. G. |
| description | The authors develop the DEM-based procedure for the numerical testing of granular samples under non-uniform compression with different load programs. The algorithm of initial packings of particles is proposed. The calculations are performed for different methods of loading with suppressed dilatancy and with dilatancy-generated volume. The macro characteristics of the stress–strain behavior of the test samples are related with the micro properties of discrete particles. The post-critical shearing induces the unstable behavior with localizations of shears, and a descending branch appears in the load diagram. The application ranges of the developed method for the mathematical modeling of shear localization are defined. |
| doi_str_mv | 10.1134/S1062739122030024 |
| format | Article |
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| subjects | Algorithms Compression Deformation Dilatancy Earth and Environmental Science Earth Sciences Geomechanics Geophysics/Geodesy Geotechnical Engineering & Applied Earth Sciences Localization Mathematical models Mineral Resources Modelling Shear Shear localization Shearing |
| title | DEM-Based Modeling of Shear Localization and Transition of Geomedium to Unstable Deformation |
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