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Cushioning energy absorption of paper corrugation tubes with regular polygonal cross-section under axial static compression
Science and Engineering of Composite Materials ( IF 1.9 ) Pub Date : 2021-01-01 , DOI: 10.1515/secm-2021-0003
Jianfen Kang 1 , Yanfeng Guo 1 , Yungang Fu 1 , Qiong Li 1 , Yabo Lv 1
Affiliation  

The paper corrugation tube is an innovative kind of energy absorbing structure and shock absorber which can play an important role on the cushioning energy absorption for airdrop equipments and transportation packaging. The deformation characteristics and failure modes of the regular triangle, quadrangle, pentagon and hexagon paper corrugation tubes were comparatively studied by a series of axial static compression experiments, the cushioning energy absorption was evaluated by the seven characteristic parameters ( e.g. initial peak force, mean crush force, total energy absorption, specific energy absorption, crush force efficiency, unit area energy absorption and stroke efficiency), and the influences of tube direction, cross-sectional shape, tube length and compression rate on failure modes and cushioning energy absorption were analyzed and compared. These researches showed that the tubes along X direction only have the accordion deformation mode, yet the tubes along Y direction have four deformation modes including steady state progressive buckling, Euler buckling, angular tear and transverse shear. For the paper corrugation tubes along Y direction, the cross-sectional shape has obvious influence on the cushioning energy absorption of structures, and the specific energy absorption and unit area energy absorption of regular triangle and pentagon tubes are better than those of the tubes with regular quadrilateral and hexagonal cross-section at compression rates of 12 and 48mm/min. The tube length of 150 mm or compression rate of 72 mm/min would cause the increase of contribution proportion of non-ideal deformation mode and the decrease of cushioning properties. The paper corrugation tubes along X direction have more stable and controllable deformation mode, yet the paper corrugation tubes along Y direction have better cushioning energy absorption.

中文翻译:

轴向静压缩规则截面为多边形的瓦楞纸管的缓冲吸能

纸波纹管是一种创新的吸能结构和减震器,在空投设备和运输包装的缓冲能量吸收中可以发挥重要作用。通过一系列轴向静态压缩实验,对正三角形,四边形,五边形和六边形纸波纹管的变形特性和破坏模式进行了比较研究,并通过七个特征参数(例如初始峰值力,平均压溃)评估了缓冲能量的吸收。力,总能量吸收,比能量吸收,压碎力效率,单位面积能量吸收和冲程效率),以及管子方向,横截面形状的影响,分析并比较了管长和压缩率对破坏模式和缓冲能量吸收的影响。这些研究表明,沿X方向的管仅具有手风琴变形模式,而沿Y方向的管具有四种变形模式,包括稳态渐进屈曲,欧拉屈曲,角向撕裂和横向剪切。对于沿Y方向的纸波纹管,其横截面形状对结构的缓冲能量吸收有明显的影响,正三角形和五边形管的比能量吸收和单位面积能量吸收要比正角管的好。压缩率为12和48mm / min的四边形和六边形横截面。150 mm的管长或72 mm / min的压缩率会导致非理想变形模式的贡献比例增加,以及缓冲性能下降。沿X方向的纸波纹管具有更稳定和可控的变形模式,而沿Y方向的纸波纹管具有更好的缓冲能量吸收。
更新日期:2021-01-01
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