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Out-of-plane static compression and energy absorption of paper hierarchical corrugation sandwich panels
The Journal of Strain Analysis for Engineering Design ( IF 1.4 ) Pub Date : 2021-04-20 , DOI: 10.1177/03093247211008566
Huineng Wang 1 , Yanfeng Guo 1 , Yungang Fu 1 , Dan Li 1
Affiliation  

This study introduces the opinion of the corrugation hierarchy to develop the second-order corrugation paperboard, and explore the deformation characteristics, yield strength, and energy absorbing capacity under out-of-plane static evenly compression loading by experimental and analytical approaches. On the basis of the inclined-straight strut elements of corrugation unit and plastic hinge lines, the yield and crushing strengths of corrugation unit were analyzed. This study shows that as the compressive stress increases, the second-order corrugation core layer is firstly crushed, and the first-order corrugation structures gradually compacted until the failure of entire structure. The corrugation type has an obvious influence on the yield strength of the corrugation sandwich panel, and the yield strength of B-flute corrugation sandwich panel is wholly higher than that of the C-flute structure. At the same compression rate, the flute type has a significant impact on energy absorption, and the C-flute second-order corrugation sandwich panel has better bearing capacity than the B-flute structure. The second-order corrugation sandwich panel has a better bearing capacity than the first-order structure. The static compression rate has little effect on the yield strength and deformation mode. However, with the increase of the static compression rate, the corrugation sandwich panel has a better cushioning energy absorption and material utilization rate.



中文翻译:

纸质多层波纹夹芯板的面外静态压缩和能量吸收

本研究介绍了瓦楞纸层次的观点,以开发二阶瓦楞纸,并通过实验和分析方法探索了平面外静态均匀压缩载荷下的变形特性,屈服强度和能量吸收能力。基于瓦楞纸箱的斜直支杆元件和塑料铰链线,分析了瓦楞纸箱的屈服强度和抗压强度。研究表明,随着压应力的增大,二阶波纹芯层首先被压扁,一阶波纹结构逐渐压实,直至整个结构破坏。瓦楞类型对瓦楞夹芯板的屈服强度有明显的影响,B槽瓦楞夹芯板的屈服强度完全高于C槽结构。在相同的压缩率下,凹槽类型对能量吸收有显着影响,C凹槽二阶波纹夹心板比B凹槽结构具有更好的承载能力。二阶波纹夹层板比一阶结构具有更好的承载能力。静态压缩率对屈服强度和变形模式影响很小。然而,随着静态压缩率的增加,波纹夹芯板具有更好的缓冲能量吸收和材料利用率。C槽二阶波纹夹心板比B槽结构具有更好的承载能力。二阶波纹夹心板比一阶结构具有更好的承载能力。静态压缩率对屈服强度和变形模式影响很小。然而,随着静态压缩率的增加,波纹夹芯板具有更好的缓冲能量吸收和材料利用率。C槽二阶波纹夹心板比B槽结构具有更好的承载能力。二阶波纹夹层板比一阶结构具有更好的承载能力。静态压缩率对屈服强度和变形模式影响很小。然而,随着静态压缩率的增加,波纹夹芯板具有更好的缓冲能量吸收和材料利用率。

更新日期:2021-04-20
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