Crashworthiness Study of Window Multi-wall Structure

doi:10.3901/JME.2019.10.142

Abstract

Abstract: Thin-walled structures have been widely used in various delivery vehicles due to high energy absorption performance, but single-wall structures easily suffer global bending and cause unstable energy absorption mode. Therefore, a window multi-wall structure is proposed to improve the energy absorption of single wall structures. The energy absorption characteristics of the window multi-wall structure, uniform multi-cell square structure and square three-wall structure are detail investigated under axial loading by experimental testing, simulation analysis and theoretical prediction. The results show that the window multi-wall structure has higher energy absorption efficiency than other two structures of the same mass. At the same time, the geometric parameters, such as wall thickness T, inner wall side length D and wall spacing ratio N, have a significant effect on crashworthiness of the window multi-wall structure. Furthermore, a theoretical model of the window multi-wall structure is developed to predict the mean crushing force and energy absorption of the window multi-wall structure based on super folding element theory. The reliability of the theoretical model is validated by comparing numerical results with theoretical solutions. The research findings offer a good guidance and theoretical support for development a novel thin-walled energy absorption structures.

Key words: 3D Printing, Biological scaffold, Biomimetic design, Ferric chloride, Microtube, Sodium alginate, energy absorption, multi-wall structure, super folding element, theoretical prediction

CLC Number:

U463

HE Ning, ZHANG Yong, CHEN Tengteng, LIN Jiming, XU Xiang. Crashworthiness Study of Window Multi-wall Structure[J]. Journal of Mechanical Engineering, 2019, 55(10): 142-150.

References

[1] 张立玲,高峰. 金属薄壁吸能结构耐撞性研究进展[J]. 机械工人:热加工,2006(1):76-78. ZHANG Liling,GAO Feng. Crashworthiness research progress of thin-walled energy-absorbing metal structures[J]. Mechanical Workers:Hot Working,2006(1):76-78.
[2] WIERZBICKI T,ABRAMOWICZ W. On the crushing mechanics of thin-walled structures[J]. Journal of Applied Mechanics,1983,50(4):727-734.
[3] ABRAMOWICZ W,JONES N. Dynamic progressive buckling of circular and square tubes[J]. International Journal of Impact Engineering,1986,4(4):243-270.
[4] GUILLOW S R,LU G,GRZEBIETA R H. Quasi-static axial compression of thin-walled circular aluminium tubes[J]. International Journal of Mechanical Sciences,2001,43(9):2103-2123.
[5] CHEN W,WIERZBICKI T. Relative merits of single-cell,multi-cell and foam-filled thin-walled structures in energy absorption[J]. Thin-Walled Structures,2001,39(4):287-306.
[6] ZHANG Xiong,CHENG Gengdong,ZHANG Hui. Theoretical prediction and numerical simulation of multi-cell square thin-walled structures[J]. Thin-Walled Structures,2006,44:1185-1191.
[7] JUSUF A,DIRGANTARA T,GUNAWAN L,et al. Crashworthiness analysis of multi-cell prismatic structures[J]. International Journal of Impact Engineering,2015,78(78):34-50.
[8] WANG Zhonggang,LIU Jiefu,YAO Song. On folding mechanics of multi-cell thin-walled square tubes[J]. Composites Part B:Engineering,2018,132(1):17-27.
[9] WU Suzhen,ZHENG Gang,SUN Guangyong,et al. On design of multi-cell thin-wall structures for crash worthiness[J]. International Journal of Impact Engineering,2016,88:102-117.
[10] WIERZBICKI T,JONES N. Structural failure[M]. Hoboken:Wiley,1989.
[11] NIA A A,PARSAPOUR M. An investigation on the energy absorption characteristics of multi-cell square tubes[J]. Thin-Walled Structures,2013,68(10):26-34.
[12] 文桂林,孔祥正. 泡沫填充夹芯墙多胞结构的耐撞性多目标优化设计[J]. 振动与冲击,2015,34(24105):115-121. WEN Guilin,KONG Xiangzheng,et al. Multi-objective crashworthiness optimization design of foam-filled sandwich wall multi-cell structures[J]. Journal of Vibration and Shock,2015,34(24105):115-121.
[13] 张勇,刘舒然,赖雄鸣,等. 泡沫填充薄壁结构的抗弯性分析及多目标优化设计[J]. 机械工程学报,2016,52(24):115-122. ZHANG Yong,LIU Shuran,LAI Xiongming,et al. Bending resistance analysis and multi-objective optimization design of foam filled thin-walled structure[J]. Journal of Mechanical Engineering,2016,52(24):115-122.
[14] 兰凤崇,马聪承,陈吉清,等. 泡沫铝填充分体式翻转结构设计与优化分析[J]. 机械工程学报,2017,53(12):156-165. LAN Fengchong,MA Congcheng,CHEN Jiqing,YU Jianli,et al. Structural design optimization of split typed flip tubes filled with aluminum foam[J]. Journal of Mechanical Engineering,2017,53(12):156-165.
[15] NHAN T T. Theoretical prediction and optimization for crashworthiness of multi-cell tubes under impact loading[D]. Changsha:Hunan University,2015.
[16] QIU Na,GAO Yunkai,FANG Jiangguang,et al. Theoretical prediction and optimization of multi-cell hexagonal tubes under axial crashing[J]. Thin-Walled Structures,2016,102:111-121.
[17] ZHANG Xiong,ZHANG Hui. Energy absorption of multi-cell stub columns under axial compression[J]. Thin-Walled Structures,2013,68(10):156-163.
[18] ZHANG Xiong,ZHANG Hui. Numerical and theoretical studies on energy absorption of three-panel angle elements[J]. International Journal of Impact Engineering,2012,46(6):23-40.
[19] HE Qiang,MA Dawei,ZHANG Zhedong,et al. Mean compressive stress constitutive equation and crashworthiness optimization design of three novel honeycombs under axial compression[J]. International Journal of Mechanical Sciences,2015,99:274-287.