An efficient remedy for the false volume expansion of DDA when simulating large rotation
文献类型：期刊论文
| 作者 | Jiang, W.1,2; Zheng, H.1 |
| 刊名 | COMPUTERS AND GEOTECHNICS
 |
| 出版日期 | 2015 |
| 卷号 | 70页码:18-23 |
| 关键词 | Discontinuous deformation analysis (DDA) Rigid body rotation Volume expansion Configuration update Local frame |
| ISSN号 | 0266-352X |
| DOI | 10.1016/j.compgeo.2015.07.008 |
| 英文摘要 | Although the constant strain mode of blocks assumed in the conventional discontinuous deformation analysis is sufficient for most applications in geotechnical engineering, a false volume expansion will occur in the presence of large block rotation. By introducing higher-order approximation to the displacements, the existing remedies can mitigate the false volume expansion to a limited extent; however, large acceleration variation or large rotation can still produce great errors. By fixing a local frame onto each block that moves and rotates with the block, the incremental strain components at the end of each time step are transformed to the local frame, which are then added to the total strain components with regard to the local frame. The false volume expansion is completely overcome with this method. (C) 2015 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Computer Science ; Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000362609700002 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3770]  |
| 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.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 2.China Three Gorges Univ, Collaborat Innovat Ctr Geohazards & Ecoenvironm G |
| 推荐引用方式 GB/T 7714 | Jiang, W.,Zheng, H.. An efficient remedy for the false volume expansion of DDA when simulating large rotation[J]. COMPUTERS AND GEOTECHNICS,2015,70:18-23. |
| APA | Jiang, W.,&Zheng, H..(2015).An efficient remedy for the false volume expansion of DDA when simulating large rotation.COMPUTERS AND GEOTECHNICS,70,18-23. |
| MLA | Jiang, W.,et al."An efficient remedy for the false volume expansion of DDA when simulating large rotation".COMPUTERS AND GEOTECHNICS 70(2015):18-23. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。