铝钢胶铆接头单搭接连接的热疲劳裂纹特征与失效机理研究  

Research on the Thermal Fatigue Crack Characteristics and Failure Mechanism of Single Overlap Connection of Aluminum Steel Adhesive Rivet Joint

作　　者：康瑾 Kang Jin(Shaanxi Polytechnic Institute Xianyang,Xianyang,Shaanxi 712000,CHN)

机构地区：[1]陕西工业职业技术学院,陕西咸阳712000

出　　处：《模具制造》2024年第12期254-256,共3页Die & Mould Manufacture

基　　金：2023年度陕西工业职业技术学院院级自然科学类一般项目“基于可靠性的高超声速飞行器热防护结构的胶接失效研究”(项目编号:2023YKYB-004)。

摘　　要：铝钢胶铆接头是一种常见的异种材料连接方式,广泛应用于航空航天、汽车制造等领域。铝钢结合处因材料性质差异及工艺复杂性,容易在热疲劳环境下产生裂纹,影响整体结构的可靠性与安全性。系统研究了铝钢胶铆接头单搭接连接在热疲劳环境下的裂纹特征与失效机理,通过详尽的实验设计和理论分析,并对接头的寿命预测及优化措施提出了具体建议,以增强其在实际工程应用中的热疲劳抗性能。Aluminum steel adhesive rivet joint is a common method of connecting dissimilar materials,widely used in aerospace,automotive manufacturing and other fields.Due to differences in material properties and process complexity,aluminum steel joints are prone to cracking in thermal fatigue environments,which affects the reliability and safety of the overall structure.It systematically studies the crack characteristics and failure mechanism of aluminum steel adhesive rivet joint single lap joint under thermal fatigue environment.Through detailed experimental design and theoretical analysis,specific suggestions are put forward for the life prediction and optimization measures of the joint to enhance its thermal fatigue resistance performance in practical engineering applications.

关 键 词：铝钢胶铆接头 热疲劳裂纹 失效机理 

分 类 号：TG162[金属学及工艺—热处理]