Energy absorption characteristics of a foam-filled tri-tube under axial quasi-static loading: experiment and numerical simulation 机翻标题: 暂无翻译,请尝试点击翻译按钮。

来源
International journal of crashworthiness
年/卷/期
2018 / 23 / 3/4
页码
417-432
ISSN号
1358-8265
作者单位
Aircraft Engine Integrated Syst Safety Beijing Ke, Beijing, Peoples R China;Beihang Univ, Sch Energy & Power Engn, Dept Engn Thermophys, Beijing, Peoples R China;Beihang Univ, Sch Transportat Sci & Engn, Dept Aircraft Airworthiness Engn, Beijing, Peoples R China;Beihang Univ, AVRC, Beijing, Peoples R China;
作者
Hu, Dayong;Wang, Yongzhen;Song, Bin;Wang, Yifan;
摘要
The circular tube is one of the most widely used energy absorbers in structure crashworthiness. To improve the energy absorption performance of the said tube, a foam-filled tri-tube is proposed. Axial quasi-static crushing experiments are conducted to investigate the energy absorption characteristics of the foam-filled tri-tube. Other tube configurations, such as empty single tubes, foam-filled single tubes, empty double tubes, foam-filled double tubes and empty tri-tubes, are also tested for comparison with the foam-filled tri-tube. Results show that the foam-filled tri-tube has better energy absorption performance than other tubes. A finite element model is developed to perform a parametric study on the effect of tube diameter, wall thickness and foam density on the energy absorption characteristics of the foam-filled tri-tube. The results show that parameters, such as outer tube diameter, wall thickness and foam density, have significant influence on the energy absorption characteristics of the foam-filled tri-tube, whereas the inner tube diameter has less influence.
机翻摘要
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关键词/主题词
Foam-filled;energy absorption;crashworthiness;crush;
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