Geometrical network of granular materials under isochoric cyclic shearing
| Autor: | Yang Ming, Taiebat Mahdi, Mutabaruka Patrick, Radjai Farhang |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | EPJ Web of Conferences, Vol 249, p 11004 (2021) |
| Druh dokumentu: | article |
| ISSN: | 2100-014X 24420190 |
| DOI: | 10.1051/epjconf/202124911004 |
| Popis: | We use three-dimensional particle dynamics simulations to investigate the microstructure evolution of granular material subjected to isochoric cyclic shearing, driving the system to a liquefaction state. The cyclically sheared assembly presents a realistic macroscopic response as observed in physical experiments. By analyzing the contact network evolution in the post-liquefaction period, we show that the onset of liquefaction state is characterized by a sudden drop of coordination number and a fragile particle connectivity network. The simulation suggests a critical coordination number for exiting the liquefaction state. Evolution of fabric anisotropy combined with coordination number implies the isotropic and anisotropic gain or loss of contacts at certain durations of a post-liquefaction loading cycle. |
| Databáze: | Directory of Open Access Journals |
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