Numerical Simulation of Damage and Failure Process in Anisotropic Brittle Rocks

被引：0
|
作者：
Yao C. [1 ]
He C. [1 ]
Jiang S.-H. [1 ]
Yang J.-H. [1 ]
Jiang Q.-H. [1 ,2 ]
机构：
[1] School of Civil Engineering and Architecture, Nanchang University, Nanchang
[2] School of Civil Engineering, Wuhan University, Wuhan
来源：
Gongcheng Lixue/Engineering Mechanics | 2019年 / 36卷 / 02期
关键词：
Anisotropy; Crack propagation; Mesoscopic modeling; Rigid block spring method; Rock failure;
D O I：
10.6052/j.issn.1000-4750.2017.12.0915
中图分类号：
学科分类号：
摘要：
Based on an improved rigid block spring method, using Hoek-Brown criterion as a failure criterion, a numerical model for the simulation of failure process of brittle anisotropic rock is established. In this model, a method for generating anisotropic Voronoi mesh and a function for anisotropic micro parameters assignment are introduced. Then the model is used for the simulation of experiments in published literatures. It indicates that: this method cannot only capture the 'U' type curve of compressive strength with regards to the bedding plane orientation and matches well with experiment results in a quantitative manner, but also has the ability to simulate the anisotropic characteristics of deformation qualitatively and quantitatively at the same time. © 2019, Engineering Mechanics Press. All right reserved.
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页码：96 / 103
页数：7
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