Continuous-discontinuous element method for three-dimensional thermal cracking of rocks

doi:10.1016/j.jrmge.2023.02.017

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Continuous-discontinuous element method for three-dimensional thermal cracking of rocks
	Nie, Wen 2; Wang, Junlin 2; Feng, Chun 1; Zhang, Yiming 2
刊名	JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
	2023-11-01
卷号	15 期号:11 页码:2917-2929
关键词	Rock thermal cracking Continuous-discontinuous element Simplex integration Temperature dependence Numerical simulation
ISSN号	1674-7755
DOI	10.1016/j.jrmge.2023.02.017
通讯作者	Zhang, Yiming(Yiming.Zhang@hebut.edu.cn)
英文摘要	Thermal cracking of rocks can significantly affect the durability of underground structures in engineering practices such as geothermal energy extraction, storage of nuclear waste and tunnelling in freeze-thaw cycle induced areas. It is a scenario of strong coupled thermomechanical process involving discontinuity behaviours of rocks. In this context, a numerical model was proposed to investigate the thermal cracking of rocks, in a framework of the continuous-discontinuous element method (CDEM) for efficiently capturing the initiation and propagation of multiple cracks. A simplex integration strategy was adopted to account for the influences of temperature-dependent material properties. Several benchmark tests were considered and the obtained results were compared with analytical solutions and numerical results from the literature. The results show that the fracture degree of the cases when considering temperature-dependent material parameters had 10% differences approximately compared with the cases with constant parameters. (C) 2023 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
资助项目	Natural Science Foundation of Hebei Province[E2020050012] ; National Natural Science Foundation of China (NSFC)[52178324] ; National Key Research and Development Project of China ; Ministry of Science and Technology of China[2018YFC1505504]
WOS关键词	NUMERICAL MANIFOLD METHOD ; MESHFREE METHOD ; EMBEDDED APPROACH ; MODEL ; DEFORMATION ; TEMPERATURE ; PERIDYNAMICS ; PROPAGATION ; SIMULATION ; INITIATION
WOS研究方向	Engineering
语种	英语
WOS记录号	WOS:001095804400010
资助机构	Natural Science Foundation of Hebei Province ; National Natural Science Foundation of China (NSFC) ; National Key Research and Development Project of China ; Ministry of Science and Technology of China
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/93423]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
通讯作者	Zhang, Yiming
作者单位	1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 2.Hebei Univ Technol, Sch Civil & Transportat Engn, Tianjin 300401, Peoples R China
推荐引用方式 GB/T 7714	Nie, Wen,Wang, Junlin,Feng, Chun,et al. Continuous-discontinuous element method for three-dimensional thermal cracking of rocks[J]. JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,2023,15(11):2917-2929.
APA	Nie, Wen,Wang, Junlin,Feng, Chun,&Zhang, Yiming.(2023).Continuous-discontinuous element method for three-dimensional thermal cracking of rocks.JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,15(11),2917-2929.
MLA	Nie, Wen,et al."Continuous-discontinuous element method for three-dimensional thermal cracking of rocks".JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING 15.11(2023):2917-2929.