HFRP混杂效应及其力学性能试验研究  

Research on HFRP Hybridization Effect and Its Mechanical Performance

作　　者：王小萌 龙秀波 吴超 WANG Xiaomeng;LONG Xiubo;WU Chao(Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province,School of Mechanics and Aerospace Engineering,Southwest Jiaotong University,Chengdu 610031,China;AECC Guizhou Liyang Aviation Power Co.,Ltd.,Guiyang 550014,China;College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]西南交通大学力学与航空航天学院应用力学与结构安全四川省重点实验室,四川成都610031 [2]中国航发贵州黎阳航空动力有限公司,贵州贵阳550014 [3]南京航空航天大学能源与动力学院,江苏南京210016

出　　处：《新技术新工艺》2023年第8期35-39,共5页New Technology & New Process

基　　金：中央高校基本科研业务费专项资金资助项目(2682022CX055);四川省自然科学基金资助项目(2022NSFSC1926)。

摘　　要：混杂纤维增强复合材料HFRP是一种力学性能优异的新型复合材料。HFRP可综合各FRP的材料特点,扬长避短,从而兼顾两者优越的力学性能,并提高材料的利用率,显著降低成本。首先,对HFRP混杂效应的机理展开分析;其次,对不同配比的碳纤维与芳纶纤维混杂制成的HFRP进行了力学性能试验研究。研究结果表明,HFRP的拉伸强度以及拉伸模量均与混杂比有关。随着碳纤维体积比的增大,拉伸强度与拉伸模量均有不同程度的增加。HFRP的延伸率均高于单一纤维增强复合材料。综合考虑其力学性能及价格,碳纤维与芳纶纤维混杂比为2∶1的HFRP性价比最佳,不但可使高强度的碳纤维与高延性的芳纶纤维优势互补,而且还能降低材料成本。HFRP,or hybrid fiber reinforced composite,was a new type of composite material with excellent mechanical properties.HFRP could integrate the characteristics of various FRP materials with accentuating the strengths and mitigating the weaknesses,thus took advantage of the superior mechanical properties of the bothand improved the utilization rate of the material while significantly reducing the cost.Firstly,the hybrid effect mechanism of HFRP was analyzed.Secondly,the experimental research was conducted on the mechanical properties of hybrid carbon and aramid fiber reinforced composite with different hybrid ratios.The research results showed that the tensile strengthand tensile modulus of HFRP were related to the hybrid ratio.Boththe tensile strengthand tensile modulus increased with the volume ratio of carbon fiber.The elongation of HFRP was higher than that of single fiber reinforced composite.Considering its mechanical properties and price,the HFRP with a hybrid ratio of 2∶1 of carbon fiber and aramid fiber was the best in terms of performance-price ratio,which could not only complement the high strengthof carbon fiber with the high ductility of aramid fiber,but also reduce the material cost.

关 键 词：纤维增强复合材料 混杂效应 混杂比 机理分析 力学性能 延伸率 

分 类 号：TB332[一般工业技术—材料科学与工程]