首页> 外文期刊>Journal of Residuals Science & Technology >Experimental Research on Statics Performance of Polyurethane Honeycomb Paperboard and Relevant Numerical Simulation
【24h】

Experimental Research on Statics Performance of Polyurethane Honeycomb Paperboard and Relevant Numerical Simulation

机译:聚氨酯蜂窝纸板静态性能的实验研究及数值模拟

获取原文
           

摘要

In the modern warfare, disaster relief and emergency rescue, aerial delivery has played a more and more important role, and it has gradually become a significant method of transporting troops and supplying goods and materials. In order to lower the impact acceleration produced when airdropped goods lands and absorb the dropping kinetic energy, the soft-landing buffer or vibration attenuation & shock resistance measures should be adopted for landing of the airdropped load. In this study, polyurethane was filled in the pores of honeycomb paperboard to obtain the composite materials of polyurethane honeycomb paperboard, on which the static compression test was carried out to evaluate the statics performance of the material. Some factors affecting the composite material were analyzed to find out the inherent law that those factors produce effects on the static cushioning performance of the composite material. The experimental result was further verified through numerical simulation. The result showed that, the elastic limit of the composite material is increased several times, and the compressive strength and the yield strength of the composite material decrease with the increase of the honeycomb size; while they were slightly raised with the increase of the thickness of the paperboard. The study can meet the demand of the energy absorption of the airdropped load.
机译:在现代战争,救灾和紧急救援中,空中运输起着越来越重要的作用,并逐渐成为运输部队和提供物资的重要手段。为了降低空投货物着陆时吸收的冲击加速度并吸收下降的动能,软着陆缓冲或减振和减振措施是有效的。落空载荷应采取防震措施。本研究将聚氨酯填充在蜂窝纸板的孔中,得到聚氨酯蜂窝纸板的复合材料,并对其进行了静态压缩试验,以评价其静电性能。分析了影响复合材料的一些因素,以找出固有的规律,这些因素对复合材料的静态缓冲性能产生影响。通过数值模拟进一步验证了实验结果。结果表明,随着蜂窝尺寸的增大,复合材料的弹性极限提高了数倍,复合材料的抗压强度和屈服强度降低。同时随着纸板厚度的增加而略微升高。该研究可以满足空投载荷吸收能量的需求。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号