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

doi:10.3901/JME.2021.02.112

Abstract

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

CLC Number:

TG156

WEI Qing, GUO Yanfeng, FU Yungang, JI Meijuan, HAN Xuxiang. Cushioning Energy Absorption of Paper Honeycomb Sandwich Tube Single-filled by Polyethylene Foam under Axial Drop Impact[J]. Journal of Mechanical Engineering, 2021, 57(2): 112-120.

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