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| 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 |
| Key Words:corrugated paper tube; axial quasi-static compression; deformation; cushioning energy absorption |
| Fund Project: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）。 |
| Author Name | Affiliation | | KANG Jian-fen | Faculty of Printing， Packaging Engineering and Digital Media Technology， Xi’an University of Technology， Xi’an， Shaanxi Province，710048 | | GUO Yan-feng* | Faculty of Printing， Packaging Engineering and Digital Media Technology， Xi’an University of Technology， Xi’an， Shaanxi Province，710048 | | FU Yun-gang | Faculty of Printing， Packaging Engineering and Digital Media Technology， Xi’an University of Technology， Xi’an， Shaanxi Province，710048 | | LI Qiong | Faculty of Printing， Packaging Engineering and Digital Media Technology， Xi’an University of Technology， Xi’an， Shaanxi Province，710048 | | LYU Ya-bo | Faculty of Printing， Packaging Engineering and Digital Media Technology， Xi’an University of Technology， Xi’an， Shaanxi Province，710048 |
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| 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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