Development and Energy-absorption Performance of a Novel Composite Assembly Consisting of a Lattice Sandwich Anti-collision Beam and Crash Box with Negative Poisson's Ratio

被引：0
|
作者：
Li Z.-K. [1 ,2 ]
Ma Z.-D. [3 ]
Li Y.-W. [4 ]
Zhang W. [5 ]
机构：
[1] School of Automobile, Chang'an University, Xi'an
[2] Key Laboratory of Road Construction Technology and Equipment of MOE, Chang'an University, Xi'an
[3] Department of Mechanical Engineering, University of Michigan, Ann Arbor, 48109, MI
[4] Body Department, FAW Jiefang Automotive Co. Ltd., Jilin
[5] National Key Laboratory of Science and Technology on UAV, Northwestern Polytechnic University, Xi'an
来源：
Zhongguo Gonglu Xuebao/China Journal of Highway and Transport | 2021年 / 34卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Anti-collision beam; Automotive engineering; Composite anti-collision assembly; Crashworthiness and lightweight design; Energy-absorption box; Lattice sandwich structure; Negative Poisson's ratio;
D O I：
10.19721/j.cnki.1001-7372.2021.09.027
中图分类号：
学科分类号：
摘要：
In order to efficiently and simultaneously solve the problems of realization of crashworthiness and lightweight car body structure, the lattice sandwich structure and negative Poisson's ratio structure were used in the design of the front crash beam and energy absorption box for passenger cars. In addition, the energy absorption performance of the new composite assembly was investigated. Using the traditional high-strength steel scheme as a benchmark, the performance design basis for the assembly to be developed was obtained. Based on a high-strength steel assembly collision test with a 40% coincidence rate, the accuracy of the finite element model was verified. The structural response characteristics and energy absorption reference values of full-width collisions were obtained, which can be used to guide the development of new assemblies. The adaptability of the new composite assembly to input energy from impact was analyzed using numerical simulation, as well as the sensitivity of energy absorption to the wall thickness of the negative Poisson's ratio energy absorption box. Subsequently, an improvement scheme for adding an energy absorption box sealing plate and an anti-collision beam support was proposed. The improved lattice sandwich anti-collision beam has better bearing stiffness and load transfer capacity, and the deformation mode of the assembly is more reasonable. The energy absorption of the assembly before improvement, with improvement scheme 1, and with improvement scheme 2 accounts for 11.5%, 68.2%, and 92.76% of the total input energy, respectively. This result is higher than the 64.09% resulting from the high-strength steel scheme. Compared with the high-strength steel scheme, the improved scheme 2 reduces the weight by 32.9%. A comparison between the trolley test and the simulation results of the composite front anti-collision assembly shows that the absolute deviation of the input energy, initial collision speed, energy absorption of the assembly, average crushing amount, average collision force, and rebound speed are all less than 5%. The results show that the energy absorption performance and lightweight level of the new composite assembly are better than those of high-strength steel after adopting the lattice sandwich structure and negative Poisson's ratio structure. These two types of structures are suitable for load-bearing vehicles and energy-absorbing structures. The design method and development process of the composite assembly are suitable for the development of related new structural assemblies. © 2021, Editorial Department of China Journal of Highway and Transport. All right reserved.
引用
收藏
页码：322 / 334
页数：12
相关论文
共 26 条
  • [1] ZHOU Qing, XIA Yong, NIE Bing-bing, Et al., Challenging Topics in Research of Vehicle Crash Safety and Lightweighting, China Journal of Highway and Transport, 32, 7, pp. 1-14, (2019)
  • [2] LI Z K, TIAN Y X, BAI J T, Et al., Bending Collapse of Treble Rectangular Thin-walled Tubes and Its Application in Conceptual Design for Automobile Crashworthiness [J], Proceeding of Institution of Mechanical Engineers, Part D, 235, 5, pp. 1269-1284, (2021)
  • [3] CHEN Jing, TANG Ao-tian, TIAN Kai, Et al., Lightweight Design of Carbon Fiber Composite Anti-collision Beam, Automotive Engineering, 42, 3, pp. 390-395, (2020)
  • [4] HU Y, LIU C, ZHANG J, Et al., Research on Carbon Fiber-reinforced Plastic Bumper Beam Subjected to Low-velocity Frontal Impact, Advances in Mechanical Engineering, 7, 6, pp. 1-15, (2015)
  • [5] LI Z K, YU Q, ZHAO X, Et al., Crashworthiness and Lightweight Optimization to Applied Multiple Materials and Foam-filled Front end Structure of Auto-body, Advances in Mechanical Engineering, 9, 3, pp. 1-21, (2017)
  • [6] MANA D, KUMAR N D, SOMASEKHAR B, Et al., Topology-optimized Thermoplastic Beams for Automobile Crashworthiness, SAE. Symposium on International Automotive Technology, pp. 1-5, (2011)
  • [7] CIAMPAGLIA A, FIUMARELLA D, BOURSIER C, Et al., Impact Response of an Origami-shaped Composite Crash Box: Experimental Analysis and Numerical Optimization, Composite Structure, 256, 1, pp. 1-8, (2021)
  • [8] NASIR H N, REGALLA S P, RAO Y V D, Et al., Drop-weight Impact Testing for the Study of Energy Absorption in Automobile Crash Boxes Made of Composite Material, Proceeding of Institution of Mechanical Engineers, Part L, 235, 1, pp. 1-17, (2021)
  • [9] PU Jian-ying, LI Qi-rong, KAI Xi-zhou, Et al., Experimental Study on Crushing Performance of 6060 Aluminum Alloy Energy Absorption Box for Automobile, Light Alloy Fabrication Technology, 48, 11, pp. 46-49, (2020)
  • [10] LIU Hai-jiang, LIU Na, XIAO Li-fang, A Study of the Impact Performance of a High-strength Sheet Molding Compound (SMC) Bumper for Lightweight, Mechanical Science and Technology for Aerospace Engineering, 30, 5, pp. 813-822, (2011)
123