A coupled thermo-mechanical model based on the combined finite-discrete element method for simulating thermal cracking of rock

doi:10.1016/j.ijrmms.2016.11.023

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	A coupled thermo-mechanical model based on the combined finite-discrete element method for simulating thermal cracking of rock
	Yan, Chengzeng 1; Zheng, Hong 2
刊名	INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
	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
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000392680100017
内容类型	期刊论文
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.