Numerical simulation for T-stress for complex multiple branching and intersecting cracks based on continuous-discontinuous cellular automaton
文献类型：期刊论文
| 作者 | Yan, Fei2,3,4,5; Yang, Hao-Ran4,5; Jiang, Quan5; Li, Shao-Jun5; Xu, Ding-Ping5; Tang, Zhi-Dan1 |
| 刊名 | THEORETICAL AND APPLIED FRACTURE MECHANICS
 |
| 出版日期 | 2022-04-01 |
| 卷号 | 118期号:-页码:- |
| 关键词 | Intersecting cracks Branching cracks Continuous-discontinuous cellular automaton T-stress Displacement correction method |
| ISSN号 | 0167-8442 |
| 英文摘要 | In this work, a discontinuous cellular automaton combined non-singular stress term of T-stress is developed for multiple cracks problems. In order to reflect the influence both singular term of SIFs and nonsingular constant term of T-stress, a new enriched shape function based on crack tip near-field asymptotic functions is proposed, which can simultaneously describe singular and non-singular stress around crack tip. Aimed at non-convergence and internal discontinuity for blending cells, a modified formulation for mathematic description of cellular automaton approximation is employed, in which a mixed uniformly varying function is employed. Besides, mathematic descriptions for strong discontinuities of intersecting and branching cracks are developed in this paper, both opening crack surfaces and close crack surfaces are given in detail respectively. Finally, a comprehensive cellular automaton model considering T-stress is constructed, which includes cell, neighborhood, updating rules and so on. Some numerical examples are given to illustrate that the present method is efficient and accurate, and it can be widely used for some practical engineering. |
| 学科主题 | Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000782115800006 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35345]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Powerchina Chengdu Engineering Corporation Limited, Chengdu 611130, China 2.CAS Center for Excellence in Complex System Mechanics, Beijing 100190, China 3.Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern University, Shenyang, Liaoning, 110819, China 4.University of Chinese Academy of Sciences, Beijing 100049, China 5.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China |
| 推荐引用方式 GB/T 7714 | Yan, Fei,Yang, Hao-Ran,Jiang, Quan,et al. Numerical simulation for T-stress for complex multiple branching and intersecting cracks based on continuous-discontinuous cellular automaton[J]. THEORETICAL AND APPLIED FRACTURE MECHANICS,2022,118(-):-. |
| APA | Yan, Fei,Yang, Hao-Ran,Jiang, Quan,Li, Shao-Jun,Xu, Ding-Ping,&Tang, Zhi-Dan.(2022).Numerical simulation for T-stress for complex multiple branching and intersecting cracks based on continuous-discontinuous cellular automaton.THEORETICAL AND APPLIED FRACTURE MECHANICS,118(-),-. |
| MLA | Yan, Fei,et al."Numerical simulation for T-stress for complex multiple branching and intersecting cracks based on continuous-discontinuous cellular automaton".THEORETICAL AND APPLIED FRACTURE MECHANICS 118.-(2022):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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