玻-碳纤维复合材料气瓶疲劳性能研究及优化分析  

Research and Optimization Analysis on Fatigue Properties of Glass-Carbon Fiber Composite Cylinder

作　　者：吴泽敏[1] 马源[1] 

机构地区：[1]大连理工大学化工机械学院

出　　处：《化工装备技术》2015年第2期1-5,共5页Chemical Equipment Technology

摘　　要：混杂纤维复合材料具有单一增强纤维复合材料不具备的优异性能。以100 L的CNG-2型气瓶为例,将纤维混杂法技术应用于复合材料气瓶,并采用有限元法对玻-碳纤维复合材料气瓶疲劳性能进行研究及优化。结果表明:在当量厚度比一定的基础上,能使复合材料气瓶疲劳性能和纤维利用率得到提高的最佳混杂比为2∶5,提高其爆破压力的最佳混杂比为5∶8;通过优化,气瓶复合材料层的体积减少了30.3%,质量减少了36.3%。Hybrid fiber composite has superior properties than single fiber reinforced composite. Taking CNG-2 cylinder（100 L） as an example, this paper applied the fiber mixed method into the composite gas cylinder, then studied and optimized the fatigue properties of glass-carbon fiber composite cylinder by FEM. The results show that in certain equivalent thickness ratio, the optimal hybrid ratio was 2 ∶5 to improve the fatigue strength and fiber utilization of the composite cylinder, and it was 5∶8 to enhance the burst pressure. Through optimization, the volume of the composite layer of gas cylinder decreased by 30.3% and the mass reduced by 36.3%.

关 键 词：复合材料气瓶 混杂纤维 疲劳性能 有限元 压力容器 

分 类 号：TQ342.94[化学工程—化纤工业]