101. Cushioning energy absorption of paper corrugation tubes with regular polygonal cross-section under axial static compression
- Author
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Jianfen Kang, Qiong Li, Yanfeng Guo, Yabo Lv, and Yungang Fu
- Subjects
deformation mode ,axial static compression ,mean crush force ,Materials science ,cushioning energy absorption ,Static compression ,folding model ,Cushioning ,02 engineering and technology ,021001 nanoscience & nanotechnology ,Cross section (physics) ,020303 mechanical engineering & transports ,0203 mechanical engineering ,Energy absorption ,TA401-492 ,Materials Chemistry ,Ceramics and Composites ,Composite material ,paper corrugation tube ,0210 nano-technology ,Materials of engineering and construction. Mechanics of materials - Abstract
The paper corrugation tube is an innovative kind of energy absorbing structure and shock absorber which can play an important role on the cushioning energy absorption for airdrop equipments and transportation packaging. The deformation characteristics and failure modes of the regular triangle, quadrangle, pentagon and hexagon paper corrugation tubes were comparatively studied by a series of axial static compression experiments, the cushioning energy absorption was evaluated by the seven characteristic parameters (e.g. initial peak force, mean crush force, total energy absorption, specific energy absorption, crush force efficiency, unit area energy absorption and stroke efficiency), and the influences of tube direction, cross-sectional shape, tube length and compression rate on failure modes and cushioning energy absorption were analyzed and compared. These researches showed that the tubes along X direction only have the accordion deformation mode, yet the tubes along Y direction have four deformation modes including steady state progressive buckling, Euler buckling, angular tear and transverse shear. For the paper corrugation tubes along Y direction, the cross-sectional shape has obvious influence on the cushioning energy absorption of structures, and the specific energy absorption and unit area energy absorption of regular triangle and pentagon tubes are better than those of the tubes with regular quadrilateral and hexagonal cross-section at compression rates of 12 and 48mm/min. The tube length of 150 mm or compression rate of 72 mm/min would cause the increase of contribution proportion of non-ideal deformation mode and the decrease of cushioning properties. The paper corrugation tubes along X direction have more stable and controllable deformation mode, yet the paper corrugation tubes along Y direction have better cushioning energy absorption.
- Published
- 2021