Geometrical network of granular materials under isochoric cyclic shearing.
- Resource Type
- Article
- Authors
- Yang, Ming; Taiebat, Mahdi; Mutabaruka, Patrick; Radjai, Farhang
- Source
- EPJ Web of Conferences. 6/7/2021, Vol. 249, p1-4. 4p.
- Subject
- *GRANULAR materials
*ISOCHORIC processes
*MICROSTRUCTURE
*PARTICLE dynamics
*LIQUEFACTION (Physics)
*ANISOTROPY
- Language
- ISSN
- 2101-6275
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. [ABSTRACT FROM AUTHOR]