| 纸蜂窝压缩密实化应变评估 |
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| 引用本文： | 王冬梅,王志伟. 纸蜂窝压缩密实化应变评估[J]. 机械工程学报, 2009, 45(5). DOI: 10.3901/JME.2009.05.285 |
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| 作者姓名： | 王冬梅 王志伟 |
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| 作者单位： | 深圳职业技术学院媒体与传播学院,深圳,518055;暨南大学包装工程研究所,珠海,519070 |
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| 基金项目： | 北京市重点实验室开放课题基金，国家自然科学基金 |
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| 摘 要： | 分析纸蜂窝压缩密实化应变对纸蜂窝吸能特性评估的重要性,引入纸蜂窝压缩瞬时相对密度的概念,从理论上建立纸蜂窝压缩密实化应变评估方程,并做了不同结构参数的纸蜂窝准静态压缩试验,试验结果表明纸蜂窝胞壁厚度、边长和纸蜂窝的拉伸率等结构因素对压缩密实化应变均有一定的影响:纸蜂窝压缩密实化应变随胞壁的厚度δ的增大而减小;随蜂窝胞元边长ι的增大而增大:随蜂窝胞壁厚跨比δ/ι的增大而减小;随其拉伸率γ的增大,先增大后减小,在拉伸率为1时,其压缩密实化应变达最大值;纸蜂窝结构因素对其压缩密实化应变的影响与文中的理论公式是相符的,纸蜂窝的密实化应变与其相对密度近似呈反比例关系,当纸蜂窝的瞬时相对密度为0.39左右时,纸蜂窝压缩趋于密实化.将该评估方程用于五层瓦楞纸板的压缩密实化过程评估表明它也可用于其他结构形式纸蜂窝材料的压缩密实化应变评估,具有一定的普适性.
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| 关 键 词： | 纸蜂窝 压缩 吸能 密实化应变 评估 |
Evaluation of Compressive Densification Strain of Paper Honeycombs |
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| WANG Dongmei,WANG Zhiwei. Evaluation of Compressive Densification Strain of Paper Honeycombs[J]. Chinese Journal of Mechanical Engineering, 2009, 45(5). DOI: 10.3901/JME.2009.05.285 |
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| Authors: | WANG Dongmei WANG Zhiwei |
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| Affiliation: | 1. School of Media and Communication;Shenzhen Polytechnic;Shenzhen 518055;2. Packaging Engineering Institute;Jinan University;Zhuhai 519070 |
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| Abstract: | The significance of the compressive densification strain to the evaluation of energy absorption properties is analyzed. The evaluation equation of compressive densification strain of paper honeycombs is modeled by introducing the instantaneous and relative density of paper honeycombs. The results of many experiments of paper honeycombs with different structure factors show how geometry aspects of hexagonal paper honeycombs, e.g. the thickness and length of honeycomb cell-wall and the drawing ratio of hexago... |
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| Keywords: | Paper honeycombs Compression Energy absorption Densification strain Evaluation |
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