An improved numerical manifold method incorporating hybrid crack element for crack propagation simulation
文献类型：期刊论文
| 作者 | He, Jun1,2; Liu, Quansheng1,3; Ma, Guowei2; Zeng, Bin2,4 |
| 刊名 | INTERNATIONAL JOURNAL OF FRACTURE
 |
| 出版日期 | 2016 |
| 卷号 | 199期号:1页码:21-38 |
| 关键词 | Numerical manifold method Hybrid crack element Stress intensity factor Crack propagation |
| ISSN号 | 0376-9429 |
| DOI | 10.1007/s10704-016-0084-z |
| 英文摘要 | The numerical manifold method (NMM) simulates continuous and discontinuous problems in a unified framework; thus NMM has advantages in analysing crack propagation. However, calculation of the stress intensity factors (SIFs) when adopting the NMM requires additional procedures, such as the J-integral and the interaction integral. In this study, a hybrid crack element (HCE) method is incorporated into the NMM to directly obtain the SIFs; the new algorithm combines the merits of both the NMM and HCE method. In the proposed algorithm, the HCE is used in the crack-tip region while the NMM is applied in the remaining region. The SIFs at the crack-tip are calculated directly from the solution of the governing equation with less computational complexity relative to existing methods. The proposed algorithm does not require any changes to the initial mesh during crack propagation. It is verified by a few examples and the results show that the simulated crack propagation paths are in good agreement with the results from existing studies while the computational efficiency is improved due to the direct calculation of the SIFs and the consistency of the mesh system in the crack propagation process. |
| WOS研究方向 | Materials Science ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000374340900002 |
| 出版者 | SPRINGER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3865]  |
| 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.Wuhan Univ, Sch Civil Engn ; 2.Univ Western Australia, Sch Civil Environm & Min Engn; 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 4.Chongqing Univ, Sch Civil Engn |
| 推荐引用方式 GB/T 7714 | He, Jun,Liu, Quansheng,Ma, Guowei,et al. An improved numerical manifold method incorporating hybrid crack element for crack propagation simulation[J]. INTERNATIONAL JOURNAL OF FRACTURE,2016,199(1):21-38. |
| APA | He, Jun,Liu, Quansheng,Ma, Guowei,&Zeng, Bin.(2016).An improved numerical manifold method incorporating hybrid crack element for crack propagation simulation.INTERNATIONAL JOURNAL OF FRACTURE,199(1),21-38. |
| MLA | He, Jun,et al."An improved numerical manifold method incorporating hybrid crack element for crack propagation simulation".INTERNATIONAL JOURNAL OF FRACTURE 199.1(2016):21-38. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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