| 康健芬,郭彦峰,付云岗,李 琼,吕亚博.纸瓦楞管的轴向准静态缓冲吸能特性研究[J].中国造纸学报,2018,33(4):23-30 |
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| 纸瓦楞管的轴向准静态缓冲吸能特性研究 |
| Cushioning Energy Absorption of Corrugated Paper Tubes under Axial Quasi-static Compression |
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| DOI：10.11981/j.issn.1000-6842.2018.04.23 |
| 中文关键词: 纸瓦楞管 轴向准静态压缩 变形 缓冲吸能 |
| Key Words:corrugated paper tube axial quasi-static compression deformation cushioning energy absorption |
| 基金项目:国家自然科学基金项目（51345008）；西安市科技计划项目（2017080CG/RC043）（XALG024）;陕西省重点研发计划项目（2018GY-191）。 |
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| 中文摘要: |
| 对4种正多边形纸瓦楞管进行了轴向准静态压缩实验，计算出缓冲吸能特性参数，分析了管方向、横截面形状、管长、压缩速率对纸瓦楞管的失效模式与缓冲吸能特性的影响。结果发现，X向纸瓦楞管仅发生手风琴变形模式，而Y向纸瓦楞管发生稳态渐进屈曲、欧拉失稳、角撕裂、横向剪切4种变形模式。对于Y向纸瓦楞管，正多边形横截面边数的变化对纸瓦楞管的缓冲吸能特性影响明显，压缩速率为12 mm/min和48 mm/min时，正三边形管和正五边形管的比吸能和单位面积吸能较高；当管长为150 mm或压缩速率为72 mm/min时，均会导致Y向纸瓦楞管的非理想变形模式占比增大，缓冲吸能特性降低。X向纸瓦楞管的变形模式更稳定可控，而Y向纸瓦楞管的缓冲吸能特性更优良。 |
| Abstract: |
| The axial quasi-static compression tests were carried out using four kinds of regular polygonal corrugated paper tubes， the characteristic parameters of cushioning energy absorption were calculated， and the effects of different tube direction， cross-sectional shape， tube length， and axial compression rate on failure modes and cushioning energy absorption of regular polygonal corrugated paper tubes were analyzed. These results showed that， the corrugated paper tube along X direction only had the deformation mode of accordion， yet the corrugated paper tube along Y direction had four deformation modes including steady progressive buckling and Euler buckling， angle tearing， and transverse shear. For the corrugated paper tube along Y direction， the effect of brim number of the regular polygonal cross-section on the cushioning energy absorption of corrugated paper tubes was obvious. The specific energy absorption and unit area energy absorption of the regular pentagonal tube and regular triangle tube were higher when the compression rates were 12 mm/min and 48 mm/min; the tube length of 150 mm or compression rate of 72 mm/min would lead to increase the possibility of non-ideal deformation， thus the cushioning energy absorption was reduced. The deformation mode of the corrugated paper tube along X direction was more stable and controllable， while the corrugated paper tube along Y direction had better cushioning energy absorption capacity. |
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