A new discrete element model for rock-like materials

Zhao，Haiyang1; Zhang，Liangchi2,3; Wu，Zhonghuai1; Liu，Ang1

2022-04-01

10.1016/j.compstruc.2021.106730

COMPUTERS & STRUCTURES   影响因子和分区

0045-7949

1879-2243

Rock-like materials such as sandstone, concrete and ceramic are composed of cemented discrete particles. As such, the discrete element method can effectively characterize the fracturing behaviour of those materials. This paper presents a new discrete element model for rock-like materials. The model is superior to most discrete element-based models in algorithm simplicity since a simple translational movement of particles and a simple tensile yield criterion defined in the model are sufficient to capture the behaviours of a rock-like material. Thus, the rotation and torque calculations can be safely removed from the algorithm. In addition, the model has advantage over most discrete element models in stress analysis, and the stress distribution predicted by the proposed model agrees very well with both the analytical and finite element solutions. Besides, the crack patterns predicted by the model agree well with the experimental observations. Therefore, the model is more effective in predicting crack nucleation, growth and propagation of rock-like materials.

Cracking Discrete element Rock-like material Stress analysis

EI ; SCI

英语

通讯

Guangdong Specific Discipline Project[2020ZDZX2006] ; Shenzhen Key Laboratory of Cross-scale Manufacturing Mechanics Project[ZDSYS20200810171201007]

Computer Science ; Engineering

Computer Science, Interdisciplinary Applications ; Engineering, Civil

WOS:000913148800001

PERGAMON-ELSEVIER SCIENCE LTD

20220111428561

Cracks ; Rocks

Materials Science:951

COMPUTER SCIENCE

2-s2.0-85122131939

Scopus

1.School of Mechanical and Manufacturing Engineering,University of New South Wales,2052,Australia
2.Shenzhen Key Laboratory of Cross-scale Manufacturing Mechanics,Southern University of Science and Technology,Shenzhen,518055,China
3.Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Zhao，Haiyang,Zhang，Liangchi,Wu，Zhonghuai,et al. A new discrete element model for rock-like materials[J]. COMPUTERS & STRUCTURES,2022,261-262.

Zhao，Haiyang,Zhang，Liangchi,Wu，Zhonghuai,&Liu，Ang.(2022).A new discrete element model for rock-like materials.COMPUTERS & STRUCTURES,261-262.

Zhao，Haiyang,et al."A new discrete element model for rock-like materials".COMPUTERS & STRUCTURES 261-262(2022).