泡沫铝填充非等长双方管的轴向压溃特性研究

PDF(1971 KB)

振动与冲击 ›› 2021, Vol. 40 ›› Issue (24) : 90-98.

论文

汪高飞1，张永亮1，郑志军1，叶坚2，秦玉林2，柯俊2，虞吉林1

作者信息 +

Axial compression characteristic of non-equal length double square tube structures filled with aluminum foam

WANG Gaofei1，ZHANG Yongliang1，ZHENG Zhijun1，YE Jian2，QIN Yulin2，KE Jun2，YU Jilin1

Author information +

文章历史 +

摘要

泡沫铝填充双管结构在轴向压缩下的初始峰值力突出，在作为吸能元件时未能有效地起到保护作用。在双管填充结构的基础上，提出了一种采用非等长双管填充结构降低初始峰值力的方法，建立了具有不同内管长度的泡沫铝填充双方管结构的有限元模型，研究了内管长度对吸能过程的影响。结果表明，与等长双管填充结构相比，非等长双管填充结构的初始压溃峰值可大幅度降低约37%，初始峰值力与平均力之比从1.9下降到1.4，且平台力不会受到明显影响。通过分析泡沫铝、内管和外管之间的相互作用，获得了双管填充结构峰值载荷与材料/结构参数之间的关系。内外管非等长设计可以提高泡沫铝填充双管结构冲击载荷的稳定性和可控性，可为压溃力稳定的吸能器设计提供指导。

Abstract

Foam-filled double tubes under axial compression have high values of initial buckling force and when used as energy-absorbing components they may not effectively play a protective role. A method was proposed to reduce the initial buckling force of the foam-filled double tubes by reducing the length of inside tube. Finite element analysis was performed on the mechanical behavior of the new structures with different lengths of inner tubes under quasi-static axial compression. The effect of the length of inner tube on the energy absorption process was analyzed. The results show that the initial buckling force of the new structure could be reduced by 37%, the ratio of the initial buckling force to the mean force is reduced from 1.8 to 1.4 and the plateau force is almost unchanged. The interaction among aluminum foam, inner tube and outer tube was analyzed, and the relationship between the peak initial buckling force and the material and structural properties of the foam-filled double tubes was obtained. The non-equal length design of the inner and outer tubes can improve the stability and controllability of the impact force of the foam-filled double tubes, and provide guidance for the design of energy absorbers with stable compressive load.

导出引用

汪高飞1，张永亮1，郑志军1，叶坚2，秦玉林2，柯俊2，虞吉林1. 泡沫铝填充非等长双方管的轴向压溃特性研究[J]. 振动与冲击, 2021, 40(24): 90-98

WANG Gaofei1，ZHANG Yongliang1，ZHENG Zhijun1，YE Jian2，QIN Yulin2，KE Jun2，YU Jilin1. Axial compression characteristic of non-equal length double square tube structures filled with aluminum foam[J]. Journal of Vibration and Shock, 2021, 40(24): 90-98

参考文献

[1] Lu G X, Yu T X. Energy Absorption of Structures and Materials[M]. Elsevier, 2003.
[2] Seitzberger M, Rammerstorfer F G, Gradinger R. Experimental studies on the quasi-static axial crushing of steel columns filled with aluminium foam[J]. International Journal of Solids and Structures, 2000, 37(30): 4125-4147.
[3] Zhang X W, Su H, Yu T X. Energy absorption of an axially crushed square tube with a buckling initiator[J]. International Journal of Impact Engineering, 2009, 36(3): 402-417.
[4] Singace A A, El-Sobky H. Behaviour of axially crushed corrugated tubes[J]. International Journal of Mechanical Sciences, 1986, 39(3): 249-268.
[5] Guler M A, Cerit M E, Bayram B, Gerceker B, Karakaya E. The effect of geometrical parameters on the energy absorption characteristics of thin-walled structures under axial impact loading[J]. International Journal of Crashworthiness, 2010, 15: 377-390.
[6] Hosseinipour S J, Daneshi G H. Energy absorbtion and mean crushing load of thin-walled grooved tubes under axial compression[J]. Thin-walled Structure, 2003, 41: 31-46.
[7] Niknejad A, Abedi M M, Liaghat G H, Nejad M Z. Prediction of the mean folding force during the axial compression in foam-filled grooved tubes by theoretical analysis[J]. Material and Design, 2012, 37: 144-151.
[8] Abedi M M, Niknejad A, Liaghat G H, Nejad M Z. Foam-Filled Grooved Tubes with Circular Cross Section Under Axial Compression: An Experimental Study[J]. Iranian Journal of Science and Technology-Transactions of Mechanical Engineering, 2016, 42: 401-413.
[9] 谭丽辉, 谭洪武, 毛志强, 崔晓梅, 徐涛. 具有不同诱导槽结构的薄壁圆管抗撞性优化[J]. 振动与冲击2014, 33: 16-21.
TAN Lihui, TAN Hongwei, CUI Xiaomei, XU Tao. Crashworthiness design optimization of thin-walled cylinders with different inducing grooves [J]. Journal of Vibration and Shock, 2014, 33: 16-21.
[10] 王良杰, 陈浩, 强旭华, 陈海宁. 诱导槽对薄壁梁碰撞性能影响的仿真研究[J]. 机械科学与技术, 2014, 33: 1826-1829.
WANG Liangjie, CHEN Hao, QIANG Xuhua, CHEN Haining. Effects of crash trigger on behavior of longitudinal beam in frontal impact[J]. Mechanical Science and Technology for Aerospace Engineering 2014, 33: 1826-1829.
[11] 李志斌, 虞吉林, 郑志军, 郭刘伟. 薄壁管及其泡沫金属填充结构耐撞性的实验研究[J]. 实验力学, 2012, 27(1): 77-86.
LI Zhibin, YU Jilin, ZHENG Zhijun, GUO Liuwei. An Experimental study on the crashworthiness of thin-walled tubes and their Metallic foam-filled structures[J]. Journal of Experimental Mechanics, 2012, 27(1): 77-86.
[12] Hanssen A G, Hopperstad O S, Langseth M. Design of aluminium foam-filled crash boxes of square and circular cross-sections[J]. International Journal of Crashworthiness, 2001, 6(2): 177-188.
[13] Dipaolo B P, Monteiro P J M, Gronsky R. Quasi-static axial crush response of a thin-wall, stainless steel box component[J]. International Journal of Solids and Structures, 2004, 41(14): 3707-3733.
[14] Langseth M, Hopperstad O S. Static and dynamic axial crushing of square thin-walled aluminium extrusions[J]. International Journal of Impact Engineering, 1996, 18(7-8): 949-968.
[15] Zheng Z J, Wang C F, Yu J L, Reid S R, Harrigan J J. Dynamic stress-strain states for metal foams using a 3D cellular model[J]. Journal of the Mechanics and Physics of Solids, 2014, 72: 93-114.
[16] 黄苏南, 丁圆圆, 王士龙, 何思渊, 郑志军, 虞吉林. 闭孔泡沫铝动态材料参数的实验研究[J]. 实验力学, 2018, 33(6): 851~861.
HUANG Sunan, DING Yuanyuan, WANG Shinlong, HE Siyuan, ZHENG Zhijun, YU Jilin. Experimental investigation on dynamic material parameters of closed-cell aluminium foam[J]. Journal of Experimental Mechanics, 2018; 33(6): 851-861.
[17] 郭刘伟, 虞吉林, 杨国栋. 泡沫铝夹芯双圆管结构的准静态轴向压缩性能研究[J]. 实验力学, 2011, 26: 181-189.
GUO Liuwei, YU Jilin, YANG Guodong. Dynamic bending response of double cylindrical tubes filled with aluminum foams[J]. International Journal of Impact Engineering, 2011, 26: 181-189..
[18] Hanssen A G, Langseth M, Hopperstad O S. Static and dynamic crushing of square aluminium extrusions with aluminium foam filler[J]. International Journal of Impact Engineering, 1999, 24(4): 347-383.