A 3D grain based model for characterizing the geometric heterogeneity of brittle rock
文献类型：会议论文
| 作者 | Lan Hengxing |
| 出版日期 | 2013 |
| 会议名称 | 47th US Rock Mechanics / Geomechanics Symposium 2013, June 23, 2013 - June 26, 2013 |
| 会议地点 | San Francisco, CA, United states |
| 关键词 | Three dimensional Geomechanics Geometry Grain size and shape Rock mechanics Rocks Stress concentration |
| 页码 | 203-208 |
| 英文摘要 | In analyzing intact rock strength, an important factor is heterogeneity. At the grain-scale, intact crystalline rock consists of a variety of mineral grains of different sizes and shapes. These features give rise to the micro-scale heterogeneity. A three dimensional Grain Based universal distinct element Model (3D-GBM) was developed to generate a deformable polyhedral grain-like structure to simulate the microstructure of brittle intact rock. The geometric heterogeneity is introduced into 3D-GBM by capturing the mineral grain size distribution. A geometric sorting coefficient is used to account for the degree of geometric heterogeneity. A number of rock-like samples are generated using a 3D-GBM realization methodology with different sorting coefficients. The effect of micro-scale geometric heterogeneity on the rock strength is explored by investigating the relationship between micro-scale behaviors and macro-scale responses. The observed characteristics of stress distribution and cracking behaviors are discussed. Copyright 2013 ARMA, American Rock Mechanics Association. |
| 收录类别 | EI |
| 会议录出版者 | American Rock Mechanics Association (ARMA) |
| 语种 | 英语 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/31017]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Lan Hengxing. A 3D grain based model for characterizing the geometric heterogeneity of brittle rock[C]. 见:47th US Rock Mechanics / Geomechanics Symposium 2013, June 23, 2013 - June 26, 2013. San Francisco, CA, United states. |
入库方式： OAI收割
来源：地理科学与资源研究所
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