A novel flexible membrane boundary method based on color function in DEM simulations for triaxial tests of granular materials
文献类型：期刊论文
| 作者 | Li, Hongze2,3; Feng, Chun1; Feng, J. L.2,3 |
| 刊名 | COMPUTERS AND GEOTECHNICS
 |
| 出版日期 | 2026 |
| 卷号 | 189页码:9 |
| 关键词 | Flexible membrane algorithm Discrete element method Lateral confining pressure Triaxial compressive test Granular mechanics |
| ISSN号 | 0266-352X |
| DOI | 10.1016/j.compgeo.2025.107657 |
| 通讯作者 | Feng, J. L.(fjl@cumtb.edu.cn) |
| 英文摘要 | This technical note presents a novel flexible membrane algorithm for DEM-based triaxial test simulations. Using color functions to calculate the normal vectors of membrane particles, the algorithm can model mechanical response of flexible membrane under large deformations and curvatures. It also uses imaginary particles to improve calculation accuracy of normal vector nearby high curvature area. After validation based on lab test result, the algorithm effectively reproduces the stress-strain behavior of specimens under triaxial compression, offering a more precise and reliable tool for studying the mechanical response of granular materials. |
| WOS关键词 | COMPRESSION TESTS ; BEHAVIOR ; MODEL ; PARTICLES ; SANDS ; SPH |
| 资助项目 | National Natural Science Foundation of China[41172116] ; National Natural Science Foundation of China[U1261212] |
| WOS研究方向 | Computer Science ; Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001582823300001 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/104113]  |
| 专题 | 力学研究所_国家微重力实验室 |
| 通讯作者 | Feng, J. L. |
| 作者单位 | 1.Chinese Acad Sci, Inst Mech, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China 2.China Univ Min & Technol Beijing, Sch Mech & Civil Engn, Xueyuan Rd D11, Beijing 100083, Peoples R China 3.China Univ Min & Technol Beijing, State Key Lab Tunnel Engn, Xueyuan Rd D11, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Hongze,Feng, Chun,Feng, J. L.. A novel flexible membrane boundary method based on color function in DEM simulations for triaxial tests of granular materials[J]. COMPUTERS AND GEOTECHNICS,2026,189:9. |
| APA | Li, Hongze,Feng, Chun,&Feng, J. L..(2026).A novel flexible membrane boundary method based on color function in DEM simulations for triaxial tests of granular materials.COMPUTERS AND GEOTECHNICS,189,9. |
| MLA | Li, Hongze,et al."A novel flexible membrane boundary method based on color function in DEM simulations for triaxial tests of granular materials".COMPUTERS AND GEOTECHNICS 189(2026):9. |
入库方式： OAI收割
来源：力学研究所
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