1.State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China
2. Key Laboratory for Bionics Engineering of Ministry of Education, Jilin University, Changchun 130022, China
A bionic tube composed of bionic joints, bionic units and bionic inner tubes was developed based on the bamboo structure to improve the crashworthiness and the energy absorption of thin walled tube resistance structures. The finite element method was used to simulate the axial impact with the response surface method used to obtain the optimal structure of the bionic energy-absorbing tube. The results show that the optimal structure of the bionic tube has a thickness of 1mm for the bionic units and a thickness of 0.628mm for the bionic inner tubes, with the specific energy absorption being 157.57kN and 34.33kJ/kg, respectively. These studies provide new methods and ideas for improving crashworthiness energy absorption of thin-walled structures.
钟志华. 汽车耐撞性分析的有限元法[J].汽车工程, 1994, 16(1): 1-6. ZHONG Zhihua. Finite element method in crashworthiness analysis of automobile[J]. Automotive Engineering, 1994, 16(1): 1-6. (in Chinese)
[2]
邓召文,张福兴,高伟. 汽车保险杠系统的结构耐撞性数值模拟研究[J]. 农业装备与车辆工程, 2007(7): 6-9. DENG Zhaowen, ZHANG Fuxing, GAO Wei. Simulation study on structural crashworthiness for bumper system in vehicle[J]. Agricultural Equipment & Vehicle Engineering, 2007(7): 6-9. (in Chinese)
[3]
许坤,寇东鹏.泡沫铝填充薄壁方形铝管的静态弯曲崩毁行为[J].固体力学学报, 2005, 26(3): 261-266. XU Kun, KOU Dongpeng. Bending collapse behavior of square aluminum extrusions with aluminum foam filler[J]. Acta Mechanica Solida Sinica, 2005, 26(3): 261-266. (in Chinese)
[4]
李世红,付绍云.竹子一种天然的生物复合材料的研究[J].材料研究学报, 1994, 8(2): 188-192. LI Shihong, FU Shaoyun. A natural composite material-Bamboo[J]. Chinese Journal of Materials Research, 1994, 8(2): 188-192. (in Chinese)
[5]
温变英. 自然界中的梯度材料及其仿生研究[J].材料导报, 2008, 22(6): 351-356. WEN Bianying. Natural functionally gradient materials and their biomimetic study[J]. Materials Review, 2008, 22(6): 351-356. (in Chinese)
[6]
Ma J F, Chen W Y, Zhao L, et al.Elastic buckling of bionic cylindrical shells based on bamboo[J]. Journal of Bionic Engineering, 2008, 5: 231-238.
[7]
Tommy Y L, Cui H Z, Leung H C. The effect of fiber density on strength capacity of bamboo[J]. Materials Letters, 2004, 58(21): 2595-2598.
[8]
Ghavami K. Bamboo as reinforcement in structural concrete elements[J].Cement and Concrete Composites, 2005, 27(6): 637-649.
[9]
Albermani F, Goh G Y, Chan S L. Lightweight bamboo double layer grid system[J]. Engineering Structures, 2007, 29: 1499-1506.
[10]
Mamalis A G, Manolakos D E, Ioannidis M B, et al.Finite element simulation of the axial collapse of metallic thin-walled tubes with octagonal cross section[J]. Thin-Wall Struct, 2003, 41(10): 891-900.
[11]
宋宏伟,万志敏,杜星文.复合圆柱管撞击吸能特性实验研究[J].实验力学, 2000, 15(4): 408-415. SONG Hongwei, WAN Zhimin, DU Xingwen. Experimental study on the impact energy absorption behavior of compound tubes[J]. Experi Mech, 2000, 15(4): 408-415. (in Chinese)
[12]
Rossi A, Fawaz Z, Behdinan K. Numerical simulation of the axial collapse of thin-walled polygonal section tubes[J]. Thin Wall Struct, 2005, 43(10): 1646-1648.
[13]
赵桂范,王伟东.复合管撞击吸能特性的数值研究[J].哈尔滨工业大学学报, 2005, 37(2): 177-179. ZHAO Guifan, WANG Weidong. Numerical study on the impact absorption behavior of compound tubes[J]. J Harbin Inst of Technol, 2005, 37(2): 177-179. (in Chinese)
[14]
王大志. 基于乘员保护的汽车正面碰撞结构设计与变形控制研究 [D].北京: 清华大学, 2006. Wang Dazhi. Study of deformation control in vehicle structural design for occupant protection in frontal impact [D]. Beijing: Tsinghua University, 2006. (in Chinese)
2014, Vol. 54 
),魏灿刚2,王龙臻1,张金换1,于用军2
