碳纤维层合板与铝合金板孔位偏移双钉胶螺连接静强度  

Static Strength of Double-bolted Bonded Carbon Fiber Laminate and Aluminum Alloy Plate Joint with Hole Offset

作　　者：刘峰[1] 豆广征 乔宇 李雪江 LIU Feng;DOU Guangzheng;QIAO Yu;LI Xuejiang(College of Aviation Engineering,Civil Aviation Flight University of China,Guanghan 618307,China)

机构地区：[1]中国民用航空飞行学院航空工程学院,四川广汉618307

出　　处：《材料科学与工程学报》2025年第1期31-38,67,共9页Journal of Materials Science and Engineering

基　　金：国家自然科学基金面上项目(52275165);中国民用航空飞行学院科研基金项目(J2022-026);民航局教育人才项目(MHJY2022031)。

摘　　要：本研究开展了碳纤维层合板与铝合金板孔位偏移双钉连接及胶螺连接静强度拉伸试验,建立了胶螺连接有限元模型,编写子程序将三维Hashin失效准则嵌入计算模型,将分析结果与实验结果进行了比较验证模型的有效性。对板间胶层脱粘机理进行了研究,分析了碳纤维层合板的渐进损伤过程。研究表明,相对于双钉螺栓连接,板间使用了胶黏剂的双钉胶螺连接强度更高。相同偏移形式下,双钉胶螺连接的峰值载荷均大于双钉螺栓连接的峰值载荷,达到9.22%~31.68%。Static tensile tests of double-bolted joint and bonded-bolted joint of carbon fiber laminate and aluminum alloy plate with hole offset are carried out.Finite element models of the bonded-bolted joint are established.Three-dimensional Hashin failure criterion is embedded in the analysis by subroutine programming.Validity of the model is performed by comparing the analysis results with the experimental results.Debonding mechanism of the adhesive layer between the laminate and aluminum plate is studied,and the failure evolution process of the carbon fiber laminates is analyzed.It is showed that the strength of the double-bolted bonded joints with adhesive is higher than that of the double-bolted joints without bonding.Under the same hole offset configuration,the peak load of the double-bolt bonded joint is greater than that of the double-bolted joint about 9.22%-31.68%.

关 键 词：胶接 碳纤维 连接 复合材料 偏移 强度 

分 类 号：TB332[一般工业技术—材料科学与工程]