泡沫填充型蜂窝纸板面外压缩性能实验研究

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振动与冲击 ›› 2017, Vol. 36 ›› Issue (20) : 146-150.

论文

鄂玉萍1,2，张喜俊1

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Experimental Research on Out-of-plane Compressive Behavior of Honeycomb Paperboard Filled with Foams

E Yuping1, 2, ZHANG Xijun1

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摘要

本文对泡沫填充型蜂窝纸板的面外压缩性能及其影响规律进行了试验研究。将不同密度的聚氨酯泡沫以不同填充方式填充入不同边长的蜂窝胞元中，以不同的压缩速率对上述泡沫填充型蜂窝纸板进行准静态压缩试验，结果发现：蜂窝胞元边长显著影响泡沫填充型蜂窝纸板的面外压缩性能，初始峰值应力和平台应力均随着胞元边长的增大而减小；当使用低密度（高发泡倍率）的泡沫填充蜂窝纸板时，初始峰值应力和平台应力均优于高密度（低发泡倍率）泡沫填充型蜂窝纸板；部分填充和完全填充的泡沫填充型蜂窝纸板相对于未填充的蜂窝纸板的平台应力和吸能性能均有大幅提升，不但降低了初始峰值应力，还提高了平台应力，对面外压缩性能和缓冲性能改善明显；在2 mm/min-50 mm/min的压缩速率区间内，泡沫填充型蜂窝纸板面外压缩性能受压缩速率的影响不显著。本文的研究成果可为蜂窝纸板的合理使用及多目标优化提供依据。

Abstract

The out-of-plane compressive behavior of honeycomb paperboard filled with polyurethane (HPFP) was experimentally studied to clarify the effect of the dimension of honeycomb cell, relative density of filling foam, filling format and compression rate on the initial peak stress, plateau stress and absorbed energy of HPFP. The results show that: the initial peak stress and plateau stress of HPFP was decreased significantly when the cell-length was increasing; plateau stress and energy absorption properties of HPFP filled with lower relative density foam were superior to that of HPFP filled with higher relative density foam; honeycomb paperboard filled with foams, whether filled totally or partially, will exhibit excellent compressive properties and energy absorption performance than those without any fillings. Foams filled in honeycomb cell can decrease the initial peak stress and increase plateau stress, thus improve the cushioning performance significantly; the effect of loading rate is insignificant to the compressive properties of HPFP between 2 mm/min-50 mm/min. Those results can offer a useful reference for rationally use and multi-objective optimization of honeycomb paperboard.

关键词

聚氨酯泡沫 / 蜂窝纸板 / 面外压缩 / 能量吸收

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鄂玉萍1,2，张喜俊1 . 泡沫填充型蜂窝纸板面外压缩性能实验研究[J]. 振动与冲击, 2017, 36(20): 146-150

E Yuping1, 2, ZHANG Xijun1. Experimental Research on Out-of-plane Compressive Behavior of Honeycomb Paperboard Filled with Foams[J]. Journal of Vibration and Shock, 2017, 36(20): 146-150

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