Deformation and Force Chain of Two-Dimensional Granular Systems under Continuous Loading
A continuous loading experiment of a two-dimensional granular system was carried out and the experimental data were obtained by digital image correlation (DIC). The deformation field of the granular system and the changing laws of the deflection angle and coordination number of the granules on force...
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MDPI AG
2023-08-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/15/5441 |
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| author | Fanxiu Chen Yuxin Liu Yuan Wang Yanji Gu Yang Yu Jie Sun |
| author_facet | Fanxiu Chen Yuxin Liu Yuan Wang Yanji Gu Yang Yu Jie Sun |
| author_sort | Fanxiu Chen |
| collection | DOAJ |
| description | A continuous loading experiment of a two-dimensional granular system was carried out and the experimental data were obtained by digital image correlation (DIC). The deformation field of the granular system and the changing laws of the deflection angle and coordination number of the granules on force chains with time were obtained. Based on the granule element method, the quantitative calculation of contact force was realized, and the internal force chains of the granular system were identified. The effects of contact force between granules and mechanical parameters on the evolution of force chains in a two-dimensional granular system under line loads were analyzed. The formation, evolution, and reconstruction of force chains in a granular system during loading, as well as the influence of the force chain network evolution on the macroscopic mechanical properties of granules were discussed. The experimental results indicated that the evolution of force chains was directly related to the number, geometric properties, and permutation distribution of granules in direct contact with the external load. |
| first_indexed | 2024-03-11T00:22:43Z |
| format | Article |
| id | doaj.art-ae6fdba63b764c67971f22d2d0cd4d72 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T00:22:43Z |
| publishDate | 2023-08-01 |
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| series | Materials |
| spelling | doaj.art-ae6fdba63b764c67971f22d2d0cd4d722023-11-18T23:13:20ZengMDPI AGMaterials1996-19442023-08-011615544110.3390/ma16155441Deformation and Force Chain of Two-Dimensional Granular Systems under Continuous LoadingFanxiu Chen0Yuxin Liu1Yuan Wang2Yanji Gu3Yang Yu4Jie Sun5School of Science, Qingdao University of Technology, Qingdao 266520, ChinaSchool of Science, Qingdao University of Technology, Qingdao 266520, ChinaSchool of Science, Qingdao University of Technology, Qingdao 266520, ChinaSchool of Science, Qingdao University of Technology, Qingdao 266520, ChinaSchool of Science, Qingdao University of Technology, Qingdao 266520, ChinaSchool of Civil Engineering, Qingdao University of Technology, Qingdao 266520, ChinaA continuous loading experiment of a two-dimensional granular system was carried out and the experimental data were obtained by digital image correlation (DIC). The deformation field of the granular system and the changing laws of the deflection angle and coordination number of the granules on force chains with time were obtained. Based on the granule element method, the quantitative calculation of contact force was realized, and the internal force chains of the granular system were identified. The effects of contact force between granules and mechanical parameters on the evolution of force chains in a two-dimensional granular system under line loads were analyzed. The formation, evolution, and reconstruction of force chains in a granular system during loading, as well as the influence of the force chain network evolution on the macroscopic mechanical properties of granules were discussed. The experimental results indicated that the evolution of force chains was directly related to the number, geometric properties, and permutation distribution of granules in direct contact with the external load.https://www.mdpi.com/1996-1944/16/15/5441granular systemforce chaincontact forcedigital image correlation (DIC)soil modeling |
| spellingShingle | Fanxiu Chen Yuxin Liu Yuan Wang Yanji Gu Yang Yu Jie Sun Deformation and Force Chain of Two-Dimensional Granular Systems under Continuous Loading Materials granular system force chain contact force digital image correlation (DIC) soil modeling |
| title | Deformation and Force Chain of Two-Dimensional Granular Systems under Continuous Loading |
| title_full | Deformation and Force Chain of Two-Dimensional Granular Systems under Continuous Loading |
| title_fullStr | Deformation and Force Chain of Two-Dimensional Granular Systems under Continuous Loading |
| title_full_unstemmed | Deformation and Force Chain of Two-Dimensional Granular Systems under Continuous Loading |
| title_short | Deformation and Force Chain of Two-Dimensional Granular Systems under Continuous Loading |
| title_sort | deformation and force chain of two dimensional granular systems under continuous loading |
| topic | granular system force chain contact force digital image correlation (DIC) soil modeling |
| url | https://www.mdpi.com/1996-1944/16/15/5441 |
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