Three-Dimensional Element Partition Method for Fracture Simulation
文献类型：期刊论文
| 作者 | Zhang, Zhennan2,3; Wang, Deyong1,2; Ge, Xiurun2; Zheng, Hong4 |
| 刊名 | INTERNATIONAL JOURNAL OF GEOMECHANICS
 |
| 出版日期 | 2016 |
| 卷号 | 16期号:3页码:- |
| 关键词 | Three-dimensional (3D) element partition method Fracture simulation Extended finite element method Remeshing |
| ISSN号 | 1532-3641 |
| DOI | 10.1061/(ASCE)GM.1943-5622.0000597 |
| 英文摘要 | A three-dimensional (3D) element partition method for simulating fracture problems is proposed here. In this method, cracks are embedded into elements in a more straightforward manner without any nodal interpolation enrichment or any extra degrees of freedom introduced. When a crack runs across an element, the element is divided into two subbulk elements and one subsurface element. The intersection points between element edges and crack faces are taken as the virtual nodes. Thus, the displacements of the virtual nodes are the extra degrees of freedom. To eliminate these extra degrees of freedom, it is assumed that the displacements of the virtual node are related only to its adjacent nodes at the same side of the crack. The least-square interpolation technique is adopted to characterize their relationship. With this method, the cracked element deformation is related to its neighborhood. The stiffness matrix and nodal force vector are derived. The friction and contact effect between crack faces are implicitly incorporated into the numerical model through the subsurface element. With the 3D element partition method, the crack is allowed to embed into an element without mesh modification or remeshing, which makes the fracture simulation highly efficient. (C) 2015 American Society of Civil Engineers. |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000379983600024 |
| 出版者 | ASCE-AMER SOC CIVIL ENGINEERS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3883]  |
| 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.CCCC Fourth Harbor Engn Inst Co Ltd; 2.Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn ; 3.Univ Min & Technol, State Key Lab GeoMech & Deep Underground Engn ; 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn |
| 推荐引用方式 GB/T 7714 | Zhang, Zhennan,Wang, Deyong,Ge, Xiurun,et al. Three-Dimensional Element Partition Method for Fracture Simulation[J]. INTERNATIONAL JOURNAL OF GEOMECHANICS,2016,16(3):-. |
| APA | Zhang, Zhennan,Wang, Deyong,Ge, Xiurun,&Zheng, Hong.(2016).Three-Dimensional Element Partition Method for Fracture Simulation.INTERNATIONAL JOURNAL OF GEOMECHANICS,16(3),-. |
| MLA | Zhang, Zhennan,et al."Three-Dimensional Element Partition Method for Fracture Simulation".INTERNATIONAL JOURNAL OF GEOMECHANICS 16.3(2016):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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