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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...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10419609/ https://www.ncbi.nlm.nih.gov/pubmed/37570144 http://dx.doi.org/10.3390/ma16155441 |
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author | Chen, Fanxiu Liu, Yuxin Wang, Yuan Gu, Yanji Yu, Yang Sun, Jie |
author_facet | Chen, Fanxiu Liu, Yuxin Wang, Yuan Gu, Yanji Yu, Yang Sun, Jie |
author_sort | Chen, Fanxiu |
collection | PubMed |
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. |
format | Online Article Text |
id | pubmed-10419609 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-104196092023-08-12 Deformation and Force Chain of Two-Dimensional Granular Systems under Continuous Loading Chen, Fanxiu Liu, Yuxin Wang, Yuan Gu, Yanji Yu, Yang Sun, Jie Materials (Basel) Article 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. MDPI 2023-08-03 /pmc/articles/PMC10419609/ /pubmed/37570144 http://dx.doi.org/10.3390/ma16155441 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Chen, Fanxiu Liu, Yuxin Wang, Yuan Gu, Yanji Yu, Yang Sun, Jie Deformation and Force Chain of Two-Dimensional Granular Systems under Continuous Loading |
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 | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10419609/ https://www.ncbi.nlm.nih.gov/pubmed/37570144 http://dx.doi.org/10.3390/ma16155441 |
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