A continuous-discontinuous cellular automaton method for cracks growth and coalescence in brittle material
文献类型：期刊论文
| 作者 | Pan, Peng-Zhi; Yan, Fei; Feng, Xia-Ting ; Li, Shao-Jun
|
| 刊名 | ACTA MECHANICA SINICA
 |
| 出版日期 | 2014 |
| 卷号 | 30期号:1页码:73-83 |
| 关键词 | Continuous-discontinuous cellular automaton method Multiple crack growth Discontinuous cellular automaton Junction criterion Coalescence criterion |
| ISSN号 | 0567-7718 |
| DOI | 10.1007/s10409-014-0002-4 |
| 英文摘要 | A method of continuous-discontinuous cellular automaton for modeling the growth and coalescence of multiple cracks in brittle material is presented. The method uses the level set to track arbitrary discontinuities, and calculation grids are independent of the discontinuities and no remeshing are required with the crack growing. Based on Griffith fracture theory and Mohr-Coulumb criterion, a mixed fracture criterion for multiple cracks growth in brittle material is proposed. The method treats the junction and coalescence of multiple cracks, and junction criterion and coalescence criterion for brittle material are given, too. Besides, in order to overcome the tracking error in the level set approximation for crack junction and coalescence, a dichotomy searching algorithm is proposed. Introduced the above theories into continuous-discontinuous cellular automaton, the present method can be applied to solving multiple crack growth in brittle material, and only cell stiffness is needed and no assembled global stiffness is needed. Some numerical examples are given to shown that the present method is efficient and accurate for crack junction, coalescence and percolation problems. |
| WOS研究方向 | Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000331967600011 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3564]  |
| 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 | Pan, Peng-Zhi,Yan, Fei,Feng, Xia-Ting,et al. A continuous-discontinuous cellular automaton method for cracks growth and coalescence in brittle material[J]. ACTA MECHANICA SINICA,2014,30(1):73-83. |
| APA | Pan, Peng-Zhi,Yan, Fei,Feng, Xia-Ting,&Li, Shao-Jun.(2014).A continuous-discontinuous cellular automaton method for cracks growth and coalescence in brittle material.ACTA MECHANICA SINICA,30(1),73-83. |
| MLA | Pan, Peng-Zhi,et al."A continuous-discontinuous cellular automaton method for cracks growth and coalescence in brittle material".ACTA MECHANICA SINICA 30.1(2014):73-83. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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