| METALS AND METAL MATRIX COMPOSITES |
|
|
|
|
|
| Research on Rapid Repair of Aircraft Aluminum Alloy Cracks with Carbon Fiber Composites Based on VARI Process |
| WANG Yuan1,2,*, SUN Yungang1,2, FU Bin1, LIU Wenhao1,2, XUAN Shanyong1,2, LIU Peng1
|
1 State-operated Machinery Factory of Wuhu, Wuhu 241007, Anhui, China
2 Anhui Aeronautical Composite Maintenance Engineering Technology Research Center, Wuhu 241007, Anhui, China |
|
|
|
|
Abstract Considering the needs of aircraft battle damage repair, based on the bonded composite repairs, a metal crackrapid repair method based on vacuum assisted resin infusion (VARI) process was studied. The VARI repair process was compared with the traditional wet bonded repair process and mechanical reinforcement repair process through static tension and fatigue experiments, the static strength recovery rate, fatigue life, repair time and specific static strength recovery rate of the specimens under different repair processes were obtained. The damage process of the VARI repair specimen was deeply studied with the help of finite element analysis method. Taking the specific static tensile strength recovery rate as the index, the repair patch parameters were further optimized by using Design Expert software. The results show that among the three repair processes, the quality of VARI repair process is the best. The static strength of the specimen repaired by VARI can be restored to 90.3% of the intact specimen, and the fatigue life is 31.4 times longer than that of the non repaired specimen; compared with the traditional wet bonding repair, the repair time can be shortened by 60.2% by using VARI repair; compared with mechanical strengthening repair, VARI repair can reduce the increase of specimen weight by 53.5% and increase the specific static strength recovery rate by 146.6%; for the crack with a length of 20 mm, the patch length of 60 mm, the width of 64.8 mm and the number of patch layers of 4 (the patch thickness of 1 mm) are the optimal patch parameters.
|
|
Published: 25 March 2024
Online: 2024-04-07
|
|
|
| Fund:Science and Technology Major Project of the Ministry of Science and Technology of Anhui Province (202203a05020039). |
|
Corresponding Authors:
*2390374908@qq.com
|
|
|
1 Hu F Y, Hu X L. National Defense Science &Technology, 2008, 29(3), 61 (in Chinese).
胡芳友, 胡絮良. 国防科技, 2008, 29(3), 61.
2 Liu Q, Djugum R, Sun S, et al. In:17th Australian Aerospace congress. Melbourne, 2017, pp. 363.
3 Wang A D, Chen Y L, Bian G X, et al. Aeronautical Manufacturing Technology, 2017(20), 91 (in Chinese).
王安东, 陈跃良, 卞贵学, 等. 航空制造技术, 2017(20), 91.
4 Daryabor P, Safizadeh M S. Infrared Physics & Technology, 2016(79), 58.
5 Xu S, Wei D, Chen H. Equipment Manufacture Technology, 2017(11), 28 (in Chinese).
许松, 魏东, 陈浩. 装备制造技术, 2017(11), 28.
6 Wen S W, Xiao J Y, Wang Y R. Composites: Part B, 2013, 44, 266.
7 Jones R A. Composite Structures, 2009, 87, 151.
8 Fard A, Ghasemi R, Mohammadi B. Russian Journal of Nondestructive Testing, 2020, 56(6), 540.
9 Zou T C, Fu J, Ju L Z, et al. Materials Reports, 2023, 37(11), 163(in Chinese).
邹田春, 符记, 巨乐章, 等. 材料导报, 2023, 37 (11), 163.
10 Zou T C, Li L H, Ju L Z, et al. Materials Reports, 2022, 36(19),155(in Chinese).
邹田春, 李龙辉, 巨乐章, 等. 材料导报, 2022, 36(19), 155.
11 Baker A A. Composites Structures, 1984, 2(2), 153.
12 Albedah A, Khan S M A, Benyahia F, et al. Engineering Fracture Mechanics, 2015, 145, 210.
13 Mhamdia R, Serier B, Albedah A, et al. Journal of Composite Materials, 2017, 51(17), 2131.
14 Caliskan U, Ekici R, Bayazit A Y, et al. Proceedings of the Institution of Mechanical Engineers Part L-Journal of Materials Design and Application, 2021, 235(5), 146.
15 Hao J B, Li X D, Mu Z T. Acta Materiae Compositae Sinica, 2016, 33(3), 643(in Chinese).
郝建滨, 李旭东, 穆志韬. 复合材料学报, 2016, 33(3), 643.
16 Nie H C, Xu J F, Guan Z D, et al. Journal of Materials Engineering, 2017, 45(10), 124 (in Chinese).
聂恒昌, 徐吉峰, 关志东, 等. 材料工程, 2017, 45(10), 124. |
|
|
|
渝公网安备50019002502923号 © Editorial Office of Materials Reports.
2024, Vol. 38 
