文献类型：期刊文献

英文题名：Design variables influencing the fatigue of Al 2024-T3 in riveted aircraft lap joints: Squeeze force and initial fit tolerance

作者：Zeng, Chao Xue, Jiu Tian Liu, Xiang Yao Tian, Wei

第一作者：曾超

通信作者：Zeng, C[1]|[14440168ac4bb1062555d]曾超;[144405c65b68e73633c3d]曾超;

机构：[1]Guizhou Inst Technol, Sch Aerosp Engn, Guiyang 550003, Peoples R China;[2]Nanjing Univ Aeronaut & Astronaut, Coll Mech & Elect Engn, Nanjing 210016, Peoples R China

第一机构：贵州理工学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Aerosp Engn, Guiyang 550003, Peoples R China.|贵州理工学院;

年份：2020

卷号：140

外文期刊名：INTERNATIONAL JOURNAL OF FATIGUE

收录：;EI(收录号：20202808933057);Scopus(收录号：2-s2.0-85087620046);WOS:【SCI-EXPANDED(收录号:WOS:000562729400005)】；

基金：The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (Grant No. 51575273), the Natural Science Foundation of Guizhou Province (Grant No. 20161065), the Engineering Research Centres of Guizhou Ordinary Institution of Higher Education (Grant No. [2018]007) and the Specific Funds for Integrated Military-Civilian Development from Guizhou Institute of Technology (Grant No. KJZX17-011).

语种：英文

外文关键词：Fatigue property; Fretting; Riveting; Lap joint; Squeeze force; Fit tolerance

摘要：This study experimentally analyzed the influence of squeeze force and initial fit tolerance on the fatigue property of a riveted aircraft lap joint. All specimens were prepared under load control and tested under six levels of fatigue loads. The results showed that an initially oversized rivet might be detrimental to fatigue-life improvement. Increasing the squeeze force within an allowable range could extend the fatigue life generally. A relative decrease was also observed at a higher range of squeeze force. A higher fatigue load was likely to weaken the effect of the interference fit. The reduced fatigue life at higher squeeze forces could be clearly explained in terms of the fretting characteristics on the faying surface as a result of different squeeze forces and load levels. This study suggests that, to fully extend the fatigue life of riveted lap joints, the influence of working fatigue loads must be considered in the structure design.