Numerical Simulation of Cracking Process in Rock Mass Under the Coupled Thermo-Mechanical Condition
文献类型：期刊论文
| 作者 | Liu, Xuewei2,4; Liu, Quansheng3; He, Jun1; Yu, Fangzheng3 |
| 刊名 | INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS
 |
| 出版日期 | 2020-11-01 |
| 卷号 | 17期号:9页码:19 |
| 关键词 | Numerical manifold method rock mass crack propagation coupled thermomechanical numerical simulation |
| ISSN号 | 0219-8762 |
| DOI | 10.1142/S0219876219500658 |
| 英文摘要 | To investigate crack initiation and propagation of rock mass under coupled thermomechanical (TM) condition, a two-dimensional coupled TM model based on the numerical manifold method (NMM) is proposed, considering the effect of thermal damage on the rock physical properties and stress on the heat conductivity. Then, the NMM, using empirical strength criteria as the crack propagation critical criterion and physical cover as the minimum failure element, was extended for cracking process simulation. Furthermore, a high-order cover function was used to improve the calculation accuracy of stress. Therefore, the proposed method consists of three parts and has a high accuracy for simulating the cracking process in the rock mass under the coupled TM condition. The ability of the proposed model for high accuracy stress, crack propagation, and thermally-induced cracking simulation was verified by three examples. Finally, the proposed method was applied to simulate the stability of a hypothetical nuclear waste repository. Based on the outcome of this study, the application of NMM can be extended to study rock failure induced by multi-field coupling effect in geo-materials. |
| 资助项目 | National Nature Science Foundation of China[41602324] ; National Nature Science Foundation of China[51774267] ; China Scholarship Council[201804910219] |
| WOS研究方向 | Engineering ; Mathematics |
| 语种 | 英语 |
| WOS记录号 | WOS:000562980600006 |
| 出版者 | WORLD SCIENTIFIC PUBL CO PTE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/24687]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Liu, Xuewei |
| 作者单位 | 1.Minist Water Resources, Yangtze River Sci Res Inst, Key Lab Geotech Mech & Engn, Wuhan, Hubei, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Hubei, Peoples R China 3.Wuhan Univ, Sch Civil Engn, Key Lab Safety Geotech & Struct Engn Hubei Prov, Wuhan, Hubei, Peoples R China 4.Monash Univ, Dept Civil Engn, Clayton, Vic, Australia |
| 推荐引用方式 GB/T 7714 | Liu, Xuewei,Liu, Quansheng,He, Jun,et al. Numerical Simulation of Cracking Process in Rock Mass Under the Coupled Thermo-Mechanical Condition[J]. INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS,2020,17(9):19. |
| APA | Liu, Xuewei,Liu, Quansheng,He, Jun,&Yu, Fangzheng.(2020).Numerical Simulation of Cracking Process in Rock Mass Under the Coupled Thermo-Mechanical Condition.INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS,17(9),19. |
| MLA | Liu, Xuewei,et al."Numerical Simulation of Cracking Process in Rock Mass Under the Coupled Thermo-Mechanical Condition".INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS 17.9(2020):19. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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