Continuous-discontinuous cellular automaton method for cohesive crack growth in rock
文献类型：期刊论文
| 作者 | Yan, Fei; Feng, Xia-Ting ; Lv, Jia-He; Pan, Peng-Zhi; Li, Shao-Jun
|
| 刊名 | ENGINEERING FRACTURE MECHANICS
 |
| 出版日期 | 2018 |
| 卷号 | 188页码:361-380 |
| 关键词 | Continuous-discontinuous cellular automaton method Cohesive cracks Rock fractures Discontinuous approximation Alternative near-tip function |
| ISSN号 | 0013-7944 |
| DOI | 10.1016/j.engfracmech.2017.09.007 |
| 英文摘要 | A group of nonsingular enrichment functions is proposed for an exact representation of the cohesive stresses, which are consistent with a nonsingular asymptotic stress field around a crack tip. An improvement in the adaptive crack tip polar coordinate is proposed for treating the local polar coordinate error. Finally, a discontinuous cellular automation model was developed, including a cell model, cell state, and updating rules. Combined with these developments and the cohesive rock model, a continuous-discontinuous cellular automaton method (CDCA) for a cohesive crack analysis is proposed, through which the calculation is only limited to the cell locality without re-meshing, and therefore, no assembled global stiffness matrix is required. Numerical simulations reveal the accuracy and efficiency of the presented method. (C) 2017 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000425195100022 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/4217]  |
| 专题 | 岩土力学所知识全产出_期刊论文 岩土力学所知识全产出 国家重点实验室知识产出_期刊论文 |
| 作者单位 | Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn |
| 推荐引用方式 GB/T 7714 | Yan, Fei,Feng, Xia-Ting,Lv, Jia-He,et al. Continuous-discontinuous cellular automaton method for cohesive crack growth in rock[J]. ENGINEERING FRACTURE MECHANICS,2018,188:361-380. |
| APA | Yan, Fei,Feng, Xia-Ting,Lv, Jia-He,Pan, Peng-Zhi,&Li, Shao-Jun.(2018).Continuous-discontinuous cellular automaton method for cohesive crack growth in rock.ENGINEERING FRACTURE MECHANICS,188,361-380. |
| MLA | Yan, Fei,et al."Continuous-discontinuous cellular automaton method for cohesive crack growth in rock".ENGINEERING FRACTURE MECHANICS 188(2018):361-380. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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