An investigation on the energy absorption characteristics of a multi-cell hexagonal tube under axial crushing loads.
A multi-cell tube enhances the energy absorption considerably compared to the absorption of a single tube under the same conditions. A novel tube configuration, namely, a multi-cell hexagonal tube, was proposed in this paper. The multi-cell tubes consist of three basic elements: a 2-panel element an...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2020-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0233708 |
| _version_ | 1818734264954388480 |
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| author | Li Yang Mingkai Yue Zhen Li Tong Shen Chongqing postdoctoral research project |
| author_facet | Li Yang Mingkai Yue Zhen Li Tong Shen Chongqing postdoctoral research project |
| author_sort | Li Yang |
| collection | DOAJ |
| description | A multi-cell tube enhances the energy absorption considerably compared to the absorption of a single tube under the same conditions. A novel tube configuration, namely, a multi-cell hexagonal tube, was proposed in this paper. The multi-cell tubes consist of three basic elements: a 2-panel element and two 3-panel elements (I and II). Simplified super folding element theory was utilized to estimate the energy dissipation of the basic elements. Based on this estimation, a theoretical expression for the mean crushing force was developed for the proposed tubes. The relative errors between a simulation, an experiment and theoretical results were no more than 5%. The effects of the hexagonal tube size and wall thickness on the crashworthiness of the multi-cell tubes were investigated. To a certain extent, the energy absorption and peak crushing force increased as the tube size and thickness increased. The response surface method (RSM) and the multi-objective non-dominated sorting genetic algorithm (NSGA-II) were used to improve the crashworthiness of the tube, and Pareto fronts were achieved. Finally, it was concluded that the optimal solution is C = 45 mm, t1 = 3.0 mm, and t2 = 2.35 mm, and the corresponding SEA and PCF were 16.52 kJ/kg and 411.36 kN, respectively. |
| first_indexed | 2024-12-18T00:02:36Z |
| format | Article |
| id | doaj.art-c4177de9b20d42bdac9c3dd724b47c00 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-18T00:02:36Z |
| publishDate | 2020-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-c4177de9b20d42bdac9c3dd724b47c002022-12-21T21:27:55ZengPublic Library of Science (PLoS)PLoS ONE1932-62032020-01-01156e023370810.1371/journal.pone.0233708An investigation on the energy absorption characteristics of a multi-cell hexagonal tube under axial crushing loads.Li YangMingkai YueZhen LiTong ShenChongqing postdoctoral research projectA multi-cell tube enhances the energy absorption considerably compared to the absorption of a single tube under the same conditions. A novel tube configuration, namely, a multi-cell hexagonal tube, was proposed in this paper. The multi-cell tubes consist of three basic elements: a 2-panel element and two 3-panel elements (I and II). Simplified super folding element theory was utilized to estimate the energy dissipation of the basic elements. Based on this estimation, a theoretical expression for the mean crushing force was developed for the proposed tubes. The relative errors between a simulation, an experiment and theoretical results were no more than 5%. The effects of the hexagonal tube size and wall thickness on the crashworthiness of the multi-cell tubes were investigated. To a certain extent, the energy absorption and peak crushing force increased as the tube size and thickness increased. The response surface method (RSM) and the multi-objective non-dominated sorting genetic algorithm (NSGA-II) were used to improve the crashworthiness of the tube, and Pareto fronts were achieved. Finally, it was concluded that the optimal solution is C = 45 mm, t1 = 3.0 mm, and t2 = 2.35 mm, and the corresponding SEA and PCF were 16.52 kJ/kg and 411.36 kN, respectively.https://doi.org/10.1371/journal.pone.0233708 |
| spellingShingle | Li Yang Mingkai Yue Zhen Li Tong Shen Chongqing postdoctoral research project An investigation on the energy absorption characteristics of a multi-cell hexagonal tube under axial crushing loads. PLoS ONE |
| title | An investigation on the energy absorption characteristics of a multi-cell hexagonal tube under axial crushing loads. |
| title_full | An investigation on the energy absorption characteristics of a multi-cell hexagonal tube under axial crushing loads. |
| title_fullStr | An investigation on the energy absorption characteristics of a multi-cell hexagonal tube under axial crushing loads. |
| title_full_unstemmed | An investigation on the energy absorption characteristics of a multi-cell hexagonal tube under axial crushing loads. |
| title_short | An investigation on the energy absorption characteristics of a multi-cell hexagonal tube under axial crushing loads. |
| title_sort | investigation on the energy absorption characteristics of a multi cell hexagonal tube under axial crushing loads |
| url | https://doi.org/10.1371/journal.pone.0233708 |
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