摘要
通过采用将间位芳纶纸直接浸渍酚醛树脂模拟蜂窝格壁的方式,来研究不同密度间位芳纶纸蜂窝异面压缩强度的影响因素。观察三种不同密度的间位芳纶纸蜂窝的微观压缩破坏形貌,并对比间位芳纶纸蜂窝异面压缩强度实测值与三种计算模型计算值,从而确定该规格下间位芳纶纸蜂窝受压破坏模式。根据蜂窝材料异面压缩强度理论计算公式进行验证,间位芳纶纸蜂窝异面压缩强度实测值与塑性坍塌计算模型所得理论值对应性较好。对于孔格边长一定的蜂窝,格壁材料本身的屈服应力和厚度是影响蜂窝异面压缩强度的关键因素,而蜂窝格壁材料的厚度和拉伸弹性模量随着上胶量的增加而增加。
The influence factors of different densities of meta-aramid paper honeycomb on the compressive strength were studied by directly impregnating the meta-aramid paper with phenolic resin to simulate the honeycomb cell wall.By observing the micro compression failure morphology of three different densities of meta-aramid paper honeycomb,and comparing the measured value of different surface compression strength of meta-aramid paper honeycomb with the calculated value of three calculation models,the compression failure mode of meta-aramid paper honeycomb under this specification was determined.According to the calculation formula of honeycomb material's different surface compressive strength,the measured value of meta-aramid paper honeycomb's different surface compressive strength is in good agreement with the theoretical value of plastic collapse calculation model.For the honeycomb with a certain length of cell side,the yield stress and thickness of the cell wall material itself are the key factors affecting the compressive strength of the honeycomb,while the thickness and Young's modulus of the cell wall material increase with the increase of the amount of glue.
作者
崔甜
轩立新
赵小娇
苏韬
陈丽春
周凯运
王宜
胡健
Cui Tian;Xuan Lixin;Zhao Xiaojiao;Su Tao;Chen Lichun;Zhou Kaiyun;Wang Yi;Hu Jian(School of Light Industry and Engineering,South China University of Technology,Guangzhou 510641,China;Research Institute for Special Structure of Aeronautical Composite,AVIC,Jinan 250023,China)
出处
《工程塑料应用》
CAS
CSCD
北大核心
2021年第6期58-62,共5页
Engineering Plastics Application
关键词
间位芳纶纸蜂窝
异面压缩强度
蜂窝格壁材料
力学模型
meta-aramid paper honeycomb
different surface compressive strength
cellular wall material
mechanical model
