A coupled thermo-mechanical model based on the combined finite-discrete element method for simulating thermal cracking of rock
文献类型：期刊论文
| 作者 | Yan, Chengzeng1; Zheng, Hong2 |
| 刊名 | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
 |
| 出版日期 | 2017 |
| 卷号 | 91页码:170-178 |
| 关键词 | Finite discrete element method (FDEM) Thermal-mechanical coupling Thermal stress Thermal cracking Rock fracture |
| ISSN号 | 1365-1609 |
| DOI | 10.1016/j.ijrmms.2016.11.023 |
| 英文摘要 | Based on a combined finite-discrete element method (FDEM), this study builds a coupled thermo-mechanical model (termed FDEM-TM) to simulate thermal cracking of rock. The coupled thermo-mechanical model consists of two major parts. In the first part the temperature distribution of the system is analyzed based on the heat conduction equation. In the second part the thermal stress caused by temperature change is added to perform mechanical fracture calculation. Based on these two parts, we can model rock fracture driven by thermo-mechanical coupling. Three examples with analytic solutions are used to verify the correctness of the model in dealing with the problems of steady-state heat conduction, unsteady-state conduction, and thermal mechanic coupling, respectively. In addition, an example of thermal cracking is also given and compared with the experimental results. The simulation results are in excellent agreement with the analytical solutions or experimental results, verifying the correctness of the coupled thermo-mechanical model to simulate thermal cracking. The proposed method provides a new tool for thermal-mechanical coupling problems in geothermal exploitation. |
| WOS研究方向 | Engineering ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000392680100017 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3980]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.China Univ Geosci, Fac Engn ; 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn |
| 推荐引用方式 GB/T 7714 | Yan, Chengzeng,Zheng, Hong. A coupled thermo-mechanical model based on the combined finite-discrete element method for simulating thermal cracking of rock[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2017,91:170-178. |
| APA | Yan, Chengzeng,&Zheng, Hong.(2017).A coupled thermo-mechanical model based on the combined finite-discrete element method for simulating thermal cracking of rock.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,91,170-178. |
| MLA | Yan, Chengzeng,et al."A coupled thermo-mechanical model based on the combined finite-discrete element method for simulating thermal cracking of rock".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 91(2017):170-178. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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