A coupled thermo-mechanical discontinuum model for simulating rock cracking induced by temperature stresses
文献类型：期刊论文
| 作者 | Jiao, Yu-Yong1; Zhang, Xiu-Li1; Zhang, Huan-Qiang1; Li, Hai-Bo1 ; Yang, Sheng-Qi2; Li, Jian-Chun1
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| 刊名 | COMPUTERS AND GEOTECHNICS
 |
| 出版日期 | 2015 |
| 卷号 | 67页码:142-149 |
| 关键词 | Thermo-mechanical coupling Cracking process Numerical model Rock Discontinuous deformation analysis |
| ISSN号 | 0266-352X |
| DOI | 10.1016/j.compgeo.2015.03.009 |
| 英文摘要 | Temperature change often induces thermal stresses in brittle materials, such as rock, causing cracking and hazardous accidents under certain circumstances. Within the framework of the discontinuous deformation analysis (DDA) method, this paper presents a coupled thermo-mechanical discontinuum model for simulating the rock cracking process induced by temperature stresses. Firstly, based on the energy conservation principle, heat transfer process in the block system is analyzed to determine changes in the temperature field; secondly, thermal stresses are calculated and coupled with the original stress field by applying the theory of thermoelasticity; thirdly, the interface between any two adjacent blocks is checked with two failure criteria to determine whether cracking occurs; fourthly, the proposed model is incorporated into a DDA-based program for failure analysis; finally, several numerical experiments are performed for verification, the simulated results agree well with the existing analytical and test results, indicating that the proposed approach is effective for thermal cracking simulation. (C) 2015 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Computer Science ; Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000354140400013 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3723]  |
| 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.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 2.China Univ Min & Technol, Sch Mech & Civil Engn, State Key Lab Geomech & Deep Underground Engn |
| 推荐引用方式 GB/T 7714 | Jiao, Yu-Yong,Zhang, Xiu-Li,Zhang, Huan-Qiang,et al. A coupled thermo-mechanical discontinuum model for simulating rock cracking induced by temperature stresses[J]. COMPUTERS AND GEOTECHNICS,2015,67:142-149. |
| APA | Jiao, Yu-Yong,Zhang, Xiu-Li,Zhang, Huan-Qiang,Li, Hai-Bo,Yang, Sheng-Qi,&Li, Jian-Chun.(2015).A coupled thermo-mechanical discontinuum model for simulating rock cracking induced by temperature stresses.COMPUTERS AND GEOTECHNICS,67,142-149. |
| MLA | Jiao, Yu-Yong,et al."A coupled thermo-mechanical discontinuum model for simulating rock cracking induced by temperature stresses".COMPUTERS AND GEOTECHNICS 67(2015):142-149. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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