采用电阻加热工艺的复合材料二次胶接接头的拉伸剪切性能  

Tensile-shear Property of Composite Secondary Bonding Joints with Resistance Heating Technology

作　　者：王轩[1] 姚凯飞 原伟强 王魁奎 于吉选 张毅 WANG Xuan;YAO Kaifei;YUAN Weiqiang;WANG Kuikui;YU Jixuan;ZHANG Yi(College of Aeronautical Engineering,Civil Aviation University of China,Tianjin,300300;Center of Civil Aircraft Product,Research Institute for Special Structures of Aeronautical Composites,AVIC,Jinan,250023;Tianjin Istar space Technology Co.,Ltd.,Tianjin,300304)

机构地区：[1]中国民航大学航空工程学院,天津300300 [2]航空工业济南特种结构研究所民机中心,山东济南250023 [3]天津爱思达航天科技有限公司,天津300304

出　　处：《中国机械工程》2025年第1期152-159,共8页China Mechanical Engineering

摘　　要：通过试验研究了5种嵌入物对热固性复合材料二次胶接接头拉伸剪切性能的影响。试验结果显示:金属网嵌入物须进行表面处理才能提高胶接质量;电阻加热工艺制备的接头拉剪强度优于热压罐工艺;嵌入物可提高接头的拉伸剪切性能,碳纤维预浸料嵌入物的接头拉伸剪切性能最好;镍网嵌入物致密度高,对应的胶接质量优于铜网嵌入物;接头搭接区域端部存在严重的应力集中;金属网嵌入物提高了接头拉伸刚度;嵌入物接头呈现内聚破坏、黏附破坏、被胶接件纤维撕裂破坏、嵌入物破坏,剥离应力在破坏中起主要作用;断面破坏模式分布区域越不规则,胶接质量越差。The impacts of 5 embeddings on tensile-shear properties of the secondary bonding joints were analyzed.The experimental results indicate that to improve the quality of the joints,the embedded metal mesh might undergo surface treatment.Tensile-shear strength of the joints by resistance heating technology is better than that by autoclave technology.The additions of embedded material enhanced the tensile shear properties of the joints,and the joints with prepreg embedding demonstrate the best tensile-shear strength.Nickel mesh embeddings exhibit higher densities,and have better bonding quality than that of copper mesh.End regions of the overlap joint experience severe stress concentration.Metal mesh embeddings enhance joint tensile stiffness.The joints with embeddings exhibit cohesive failure,adhesive failure,fiber tearing fracture of bonded parts and embedding failure,and the peeling stress is a major factor in failure.The more irregular distribution of failure modes is in the failure section,the poorer bonding quality is.

关 键 词：电阻加热 二次胶接 复合材料 拉伸剪切性能 

分 类 号：V258[一般工业技术—材料科学与工程]