• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2021, Vol. 57 ›› Issue (2): 112-120.doi: 10.3901/JME.2021.02.112

• 材料科学与工程 • 上一篇    下一篇

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聚乙烯泡沫单填充纸蜂窝夹层管的轴向缓冲吸能特性

韦青, 郭彦峰, 付云岗, 吉美娟, 韩旭香   

  1. 西安理工大学包装工程系 西安 710048
  • 收稿日期:2020-03-02 修回日期:2020-08-18 出版日期:2021-01-20 发布日期:2021-03-15
  • 通讯作者: 郭彦峰(通信作者),男,1970年出生,博士,教授。主要从事缓冲包装动力学、缓冲吸能结构与性能方面的研究。E-mail:guoyf@xaut.edu.cn
  • 作者简介:韦青,男,1995年出生。主要从事缓冲吸能结构与性能方面的研究。E-mail:390066389@qq.com
  • 基金资助:
    西安市科技计划(2017080CG/RC043(XALG024))和陕西省重点研发计划(2018GY-191)资助项目。

Cushioning Energy Absorption of Paper Honeycomb Sandwich Tube Single-filled by Polyethylene Foam under Axial Drop Impact

WEI Qing, GUO Yanfeng, FU Yungang, JI Meijuan, HAN Xuxiang   

  1. Department of Packaging Engineering, Xi'an University of Technology, Xi'an 710048
  • Received:2020-03-02 Revised:2020-08-18 Online:2021-01-20 Published:2021-03-15

摘要: 借鉴波纹管、夹层管和泡沫填充管等设计思想,利用纸蜂窝和聚乙烯泡沫这两种优质缓冲吸能材料,提出聚乙烯泡沫单填充正多边形纸蜂窝夹层管的设计思路。通过静态和动态轴向压缩试验分析,研究这类结构的轴向缓冲吸能特性,探讨结构参数、跌落冲击参数对变形特征和关键吸能指标的影响,为其结构设计与性能优化提供参考。结果表明,在轴向静态压缩情况下,单填充纸蜂窝夹层管发生渐进屈曲变形且泡沫发生非均匀变形,X向管的屈服强度、压溃强度和塑性平台应力均优于Y向管。随着管横截面边数的增加,单填充管的比吸能、行程利用率和比总体效率都呈下降的趋势。在轴向跌落冲击载荷作用下,X向管的比吸能、比总体效率都高于Y向管,而行程利用率低于Y向管。随着管长比或管横截面边数的增加,管的比吸能、行程利用率和比总体效率都有明显的下降,而随着跌落冲击能量的增加,管的比吸能、行程利用率和比总体效率近似于线性增加。

关键词: 纸蜂窝夹层管, 聚乙烯泡沫填充, 静态压缩, 轴向跌落冲击, 缓冲吸能特性

Abstract: Referring the design concepts of the corrugation tube, sandwich tube, and foam-filled tube, and employing two kinds of excellent cushioning energy-absorbing materials such as paper honeycomb and polyethylene foam, the design method of regular polygonal paper honeycomb sandwich tube single-filled by polyethylene foam is proposed. The influences of structural parameters, drop impact parameters on deformation characteristics and key energy-absorbing indices are analyzed so as to provide a reference for the structural design and performance optimization. The results show that, the single-filled paper honeycomb sandwich tube clearly takes on progressive buckling deformation accompanying non-uniform deformation of polyethylene foam at axial static compression. The X-direction tube has higher yield strength, crushing strength and plastic plateau stress than the Y-direction tube. With the increase of tubular cross-section edge number, the specific energy absorption, stroke efficiency and specific total efficiency of the single-filled tube show a decreasing trend. For the axial drop impact loading, the specific energy absorption, specific total efficiency of the X-direction tube are better than the Y-direction tube, yet the stroke efficiency is less than the Y-direction tube. As the tubular length ratio or the tubular cross-section edge number increase, the specific energy absorption, stroke efficiency and specific total efficiency of the tube obviously decrease. Yet the impact energy increases, the specific energy absorption, stroke efficiency and specific total efficiency of the tube are approximate linearly increased.

Key words: paper honeycomb sandwich tube, polyethylene foam filling, static compression, axial drop impact, cushioning energy absorption

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