文章摘要
曹敏娜,杨国超,张求慧.纸木蜂窝板面外静态压缩有限元仿真分析[J].包装工程,2023,44(9):199-205.
CAO Min-na,YANG Guo-chao,ZHANG Qiu-hui.Finite Element Simulation Analysis on Out of Plane Static Compression of Paper-wood Honeycomb Board[J].Packaging Engineering,2023,44(9):199-205.
纸木蜂窝板面外静态压缩有限元仿真分析
Finite Element Simulation Analysis on Out of Plane Static Compression of Paper-wood Honeycomb Board
  
DOI:10.19554/j.cnki.1001-3563.2023.09.024
中文关键词: 纸木蜂窝板  蜂窝芯层  面外静态压缩  有限元
英文关键词: paper-wood honeycomb board  honeycomb core layer  out of plane static compression  finite element
基金项目:
作者单位
曹敏娜 北京林业大学 木质材料科学与应用教育部重点实验室北京 100083 
杨国超 木材科学与工程北京重点实验室北京 100083 
张求慧 木材科学与工程北京重点实验室北京 100083 
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中文摘要:
      目的 探究纸木蜂窝板的压溃模式和单个蜂窝单元的变形失效模式,为纸木蜂窝板内部失效机制提供一定的理论基础。方法 通过有限元仿真模拟,分析面外静态压缩得到变形云图、应力–应变云图和应力–应变曲线。结果 纸木蜂窝板的受压过程分为4个阶段,应力集中分布在蜂窝芯层,最外侧的蜂窝最早出现变形且变形较大,随后中间区域的蜂窝逐步变形增大。蜂窝芯层在受压时存在至多1个应力峰,蜂窝壁弯曲折叠了1~2次,产生了1~2个塑性铰,并在此过程中吸收能量。结论 纸木蜂窝板的压溃失效趋势为由外侧蜂窝向内部蜂窝,由单层壁向双层壁,由最弱的压溃点向其余位置。
英文摘要:
      The work aims to explore the collapse mode of paper-wood honeycomb boards and the deformation failure mode of a single honeycomb unit, so as to provide a theoretical basis for the internal failure mechanism of paper-wood honeycomb boards. Through finite element simulation, the out of plane static compression was analyzed and its deformation pattern, stress-strain pattern and stress-strain curve were obtained. The results showed that the compression process of paper-wood honeycomb boards was divided into four stages. The stress was concentrated in the honeycomb core layer. The outer most honeycomb deformed greatly first, and then the deformation of the middle honeycomb gradually increased. There was one or more stress peaks in the honeycomb core layer under compression. The honeycomb wall bent and folded for 1-2 times, generating 1-2 plastic hinges and absorbing energy in this process. In a word, the collapse failure trend of paper-wood honeycomb boards is from the outer honeycomb to the inner honeycomb, from the single wall to the double wall, and from the weakest collapse point to the rest.
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