Numerical simulation of true triaxial fracture evolution of rocks with random fracture

被引：0
|
作者：
Li Z. [1 ,2 ]
Zhou W. [2 ]
Wang L. [3 ]
Li W. [4 ]
Ren B. [3 ]
机构：
[1] State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan
[2] School of Mines, China University of Mining and Technology, Xuzhou
[3] State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou
[4] School of Civil Engineering and Architecture, Shandong University of Science and Technology, Qingdao
来源：
Zhongguo Kuangye Daxue Xuebao/Journal of China University of Mining and Technology | 2023年 / 52卷 / 01期
关键词：
ABAQUS; Fracture evolution; Random fractures; True triaxial criteria; True triaxial tests;
D O I：
10.13247/j.cnki.jcumt.20200440
中图分类号：
学科分类号：
摘要：
To analyze the true triaxial fracture evolution of rocks, various meso-element models with complete and random damage distribution were developed. The Mogi-Coulomb criterion and the equivalent tangential stress around the fracture were used to describe the fracture evolution law of the meso-element. Utilizing the USDFLD module of the ABAQUS program, a numerical model of the real triaxial fracture evolution of rocks with random fractures was secondary created. Real triaxial studies on rocks were calculated numerically and experimentally in the lab, respectively. The results demonstrated that the numerical model of true triaxial rock fracture development can accurately represent the properties of rock fracture under various true stress paths. The direction of the rock macroscopic fracture strongly depends on the direction of the intermediate principal stress, i.e., it follows the change of the intermediate principal stress, which has significant theoretical and guiding relevance for engineering. © 2023, Editorial Board of Journal of CUMT. All right reserved.
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页码：43 / 51
页数：8
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