New honeycomb multi-stage thin-walled structure with high efficiency energy absorption characteristics

被引：0

作者：

Zhang Y.-Z. ^{[1
,2
]}

Ma Y.-H. ^{[1
,3
]}

机构：

[1] College of Biological and Agricultural Engineering, Jilin University, Changchun

[2] Intelligent Electronic Manufacturing Research Center, Beijing City University, Beijing

[3] Institute of Structured and Architected Materials, Liaoning Academy of Materials, Shenyang

来源：

Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition) | 2024年 / 54卷 / 01期

关键词：

additive manufacturing; bionic design; efficient energy absorption; multi-level structure;

D O I：

10.13229/j.cnki.jdxbgxb.20230802

中图分类号：

学科分类号：

摘要：

The existing thin-walled structure has the problem of low specific energy absorption and low compression efficiency. The honeycomb was used as a prototype to simulate the multi-level nested structure of honeycomb and the optimization design of bionic structure was carried out. In order to better explore the influence of shape parameters on energy absorption capacity，a total of 20 honeycomb multistage thin-walled structures were designed based on the relative rotation angle and the diameter of the reinforced column. Using 3D printing technology，a multi-stage thin-walled structure sample of imitation honeycomb made of nylon was prepared，and a quasi-static compression test was carried out. Finally，the numerical simulation results and experimental results are compared and analyzed，and the following conclusions are drawn：the model with the strongest energy absorption capacity in this paper is YMT20-3.6，reaching 10.87 J·g−1，which is about 86% higher than that of the initial model YMT0-0. The larger the rotation angle，the larger the diameter of the reinforcement column，the more uniform the distribution of the cross-sectional area of the model，the symmetrical deformation mode of the model，and the stronger its energy absorption capacity. A larger rotation angle has better energy absorption，but its compression force efficiency is less. Increasing the diameter of the model strengthening column can reduce the influence of rotation angle on the compression force efficiency and improve the compression force efficiency of the model，so as to obtain a thin-walled structure with strong energy absorption capacity and high compression force efficiency. © 2024 Editorial Board of Jilin University. All rights reserved.

引用

页码：259 / 267

页数：8

共 20 条

[1] Fan Xiao-wen, Yang Xin, Xu Shu-cai, Et al., Study on axial and oblique crashworthiness of thin wall structure of bone imitation unit, Manned Spaceflight, 26, 2, pp. 142-151, (2020)
[2] Lu Zhang-quan, Lightweight modeling method for automotive thin-wall structure oriented to additive manufacturing, (2016)
[3] Zhang Lin-wei, Bai Zhong-hao, Bai Fang-hua, Crashworthiness design for bio-inspired multi-cell tubes with quadrilateral, hexagonal and octagonal sections, Thin-Walled Structures, 122, pp. 42-51, (2018)
[4] Zhang Wen, Yu T X, Xu Jun, Uncover the underlying mechanisms of topology and structural hierarchy in energy absorption performances of bamboo-inspired tubular honeycomb[J], Extreme Mechanics Letters, 52, (2022)
[5] Wang Jin, Zhang Yong, He Ning, Et al., Crashworthiness behavior of Koch fractal structures, Materials & Design, 144, pp. 229-244, (2018)
[6] Xia Ping, Liu Qian-cheng, Fu Hua, Et al., Mechanical properties and energy absorption of 3D printed double-layered helix honeycomb under in-plane compression, Composite Structures, 315, (2023)
[7] Wu Fei, Chen Ya-ting, Zhao Shun-qiu, Et al., Mechanical properties and energy absorption of composite bio-inspired multi-cell tubes, Thin-Walled Structures, (2023)
[8] Huang Han, Xu Shu-cai, Du Wen-jing, Et al., Analysis and optimization of energy absorption characteristics of biomimetic thin-walled tube based on chelate structure of shrimp, Transactions of Beijing Institute of Technology, 40, 3, pp. 267-274, (2020)
[9] Xiao Yong, Crashworthiness of Aluminum Honeycomb Filled Structure of Carbon Fiber Thin-wall Beam for Vehicle, (2018)
[10] Yu Zheng-lei, Xin Ren-long, Chen Li-xin, Et al., Load bearing characteristics of honeycomb protection structure, Journal of Jilin University (Engineering and Technology Edition), 51, 3, pp. 1140-1145, (2021)

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