Open AccessExperimental study on fatigue performance of bushing repair with different fasteners
Author(s) -
Siwei Tao,
Zou Jian-sheng
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1885/3/032037
Subject(s) - bushing , structural engineering , lock (firearm) , rivet , fatigue testing , engineering , materials science , mechanical engineering
Based on the fatigue theory, the main influencing parameters of bushing repair are qualitatively analyzed. The specimen-level fatigue test is carried out to quantitatively analyze the changes in the fatigue quality of metal structures connected by different fasteners before and after the bushing repair. The result suggests that: The DFR of the high-lock bolt connection after bushing repair is basically the same as the engineering calculation result, and the DFR of rivet connection after bushing repair is steadily lower than the engineering calculation result; Under a certain bushing interference, as the outer diameter of the bushing increases, the fatigue quality of the bushing repair structure of the high-lock bolt connection and the rivet connection shows a tendency to decrease and then increase. The experimental research provides reference for the application of civil aircraft bushing repair technology.