Mechanical model and application of adhesive repair for broken holes in aircraft composite skin

doi:10.19936/j.cnki.2096-8000.20260628.015

Abstract

Abstract: In order to quickly design repair plans for aircraft composite material perforation damage, a general mechanical analysis model for composite material lap joints under complex loads was established. The additional bending moment and shear force caused by axial tension in the skin perforation repair model were solved, and the distribution curves of shear stress and peel stress in the joint overlap section were obtained, which are close to the results of finite element analysis. This model provides strong support for the rapid design and joint analysis of maintenance plans. The model results indicate that using the same panel as the original structure for patching or appropriately increasing the overlap length and adhesive layer thickness can achieve better repair strength.

Key words: composite materials, patch repair, adhesive-bonded joint, mechanical analysis, finite elements

CLC Number:

TB332

LIANG Yun, WANG Heng, YANG Chaojun. Mechanical model and application of adhesive repair for broken holes in aircraft composite skin[J]. COMPOSITES SCIENCE AND ENGINEERING, 2026, 0(6): 137-145.

References

[1] 阿兰·贝克, 斯图尔特·达特恩, 唐纳德·凯利. 飞机结构复合材料技术[M]. 柴亚南, 丁惠梁, 译. 北京:航空工业出版社, 2015:302-331.
[2] 贝克, 罗斯, 琼斯. 飞机金属结构复合材料修理技术[M]. 董登科, 丁惠梁, 译. 北京:航空工业出版社, 2017:315-333.
[3] VOLKERSEN O. Die Nietkraftverteilung in zugbeanspruchten Nietverbindungen mit konstanten Laschenquerschnitten[J]. Luftfahrtforschung, 1938, 15(1/2):41-47.
[4] GOLAND M, REISSNER E. The stresses in cemented joints[J]. Journal of Applied Mechanics, 1944, 11(1):A17-A27.
[5] HART-SMITH L J. Stress analysis—a continuum mechanics approach in(adhesive bonded joints)[J]. Developments in Adhesives, 1981(2):1-44.
[6] HART-SMITH L J. Adhesive-bonded single-lap joints:NASA-CR-112236[R]. Washington, D.C.:NASA, 1973.
[7] WEIßGRAEBER P, STEIN N, BECKER W. A general sandwich-type model for adhesive joints with composite adherends[J]. International Journal of Adhesion and Adhesives, 2014,55:56-63.
[8] 王绥安. 复合材料胶接接头参数化建模与分析[D]. 西安:西北工业大学, 2020.
[9] 邵金涛. 复合材料胶接结构应力分析与渐进损伤过程的研究[D]. 南京:南京航空航天大学, 2019.
[10] 陈禹良, 张俊, 吴何畏, 等. CFRP层合板单搭接胶接接头拉伸失效机制研究[J]. 复合材料科学与工程, 2024(10):24-31.
[11] 邹田春, 巨乐章, 管玉玺, 等. 铺层方式对CFRP-Al胶接接头疲劳行为的影响[J]. 航空学报, 2023,44(18):292-307.
[12] 王露晨. 复合材料层合板修理评估方法研究[D]. 南京:南京航空航天大学, 2020.
[13] 张茹, 陈向明, 李新祥, 等. 两种厚度的层合板单搭接胶接接头的静力与疲劳性能研究[J]. 复合材料科学与工程, 2024(7):86-92.
[14] 张亚楠, 陈栋, 时建纬, 等. CFRP层合板单搭胶接接头胶板界面剥离强度仿真分析[J]. 复合材料科学与工程, 2024(1):74-82, 88.
[15] 兰佳奇, 袁昱超, 唐文勇. CFRP复合材料层合板胶接结构铺层方式优化研究[J]. 舰船科学技术, 2023,45(14):33-40.
[16] 王锴, 魏杨, 何宗锴, 等. 复合材料胶接接头多加载工况下的力学性能[J]. 科学技术与工程, 2024,24(26):11180-11187.
[17] LUO Q T, TONG L Y. Fully-coupled nonlinear analysis of single lap adhesive joints[J]. International Journal of Solids and Structures, 2007, 44(7/8):2349-2370.
[18] ZHAO X, ADAMS R D, DA SILVA L F M. A new method for the determination of bending moments in single lap joints[J]. International Journal of Adhesion and Adhesives, 2010, 30(2):63-71.
[19] DA SILVA L F M, DAS NEVES P J C, ADAMS R D, et al. Analytical models of adhesively bonded joints:part Ⅱ:comparative study[J].International Journal of Adhesion and Adhesives, 2009, 29(3):331-341.