Extended DDA with rotation remedies and cohesive crack model for simulation of the dynamic seismic landslide
文献类型：期刊论文
| 作者 | Gong, Shilin3; Hu, Chengbao4; Guo, Longxiao2; Ling, Daosheng3; Chen, Guangqi2; Zhang, Xiuli1 |
| 刊名 | ENGINEERING FRACTURE MECHANICS
 |
| 出版日期 | 2022-05-01 |
| 卷号 | 266期号:-页码:- |
| 关键词 | Fracture Cohesive crack model Discontinuous deformation analysis Rotation remedies Earthquake-induced landside |
| ISSN号 | 0013-7944 |
| 英文摘要 | The failure of earthquake-induced landslides generally involves four stages: tensile cracking, breaking of the substrate, shearing failure, and deposition of the sliding mass, which poses a challenge for high-accuracy simulation of such landslides. To resolve this issue, this paper presents an integrated algorithm by introducing a bilinear cohesive contact model into the proposed discontinuous deformation analysis (DDA) method. In the proposed DDA, the displacement mode of the original DDA is replaced by the multiplicative decomposition of the displacement to improve the distortion and false volume expansion of blocks with large rotations. The timely introduction of the bilinear cohesive contact model can better describe the peak-post softening behavior of rocks consisting of blocks. Finally, the extended algorithm is formulated and implemented in the source program of the DDA and then verified through typical examples. The results indicate that the proposed method can facilitate the generation of tensile cracks and effectively eliminate distortion and false volume expansion of blocks, demonstrating consistent results with the test or field investigation. |
| 学科主题 | Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000792676300003 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35395]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 2.Department of Civil and Structural Engineering, Kyushu University, Fukuoka 819-0395, Japan 3.Institute of Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China 4.Department of Civil Engineering, Zhejiang University City College, Hangzhou 310015, China |
| 推荐引用方式 GB/T 7714 | Gong, Shilin,Hu, Chengbao,Guo, Longxiao,et al. Extended DDA with rotation remedies and cohesive crack model for simulation of the dynamic seismic landslide[J]. ENGINEERING FRACTURE MECHANICS,2022,266(-):-. |
| APA | Gong, Shilin,Hu, Chengbao,Guo, Longxiao,Ling, Daosheng,Chen, Guangqi,&Zhang, Xiuli.(2022).Extended DDA with rotation remedies and cohesive crack model for simulation of the dynamic seismic landslide.ENGINEERING FRACTURE MECHANICS,266(-),-. |
| MLA | Gong, Shilin,et al."Extended DDA with rotation remedies and cohesive crack model for simulation of the dynamic seismic landslide".ENGINEERING FRACTURE MECHANICS 266.-(2022):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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