Discrete element based numerical simulation of granular material fracturing
https://doi.org/10.18303/2619-1563-2024-1-92
Abstract
This paper provides a description and software implementation of an algorithm for numerical simulation of uniaxial loading of porous media. The algorithm is based on the method of bonded discrete elements, in which the environment is represented as a set of interacting particles. The purpose of this study is to systematically study the influence of input parameters on the strength characteristics of the resulting material. A series of numerical experiments is presented for various combinations of tangential stiffness, bond length, and particle friction coefficient at the microlevel. Based on the obtained stress-strain curves, the values of Young's modulus and compressive strength of the body were calculated. It is shown that compressive strength of the material shows a linear increase with increasing bond length and tangential stiffness, and a quadratic dependence with increasing friction coefficient. Young's modulus tends to increase for all varied parameters. However, it seems impossible to establish any specific dependencies using the number of statistical realizations used in the work.
Supporting agencies: The study was carried out as part of government assignment to the Russian Academy of Sciences in basic research, Project FWZZ-2022-0022, and supported by the Russian Science Foundation, Project No. 21-71-20003.
About the Authors
V. D. Chepelenkova
Trofimuk Institute of Petroleum Geology and Geophysics, SB RAS
Russian Federation
Russian Federation
3, Koptyug Ave., Novosibirsk, 630090.
V. V. Lisitsa
Sobolev Institute of Mathematics SB RAS
Russian Federation
Russian Federation
4, Koptyug Ave., Novosibirsk, 630090.
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Review
For citations:
Chepelenkova V.D., Lisitsa V.V. Discrete element based numerical simulation of granular material fracturing. Russian Journal of Geophysical Technologies. 2024;(1):92-104. (In Russ.) https://doi.org/10.18303/2619-1563-2024-1-92
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