Numerical Study on Loading Properties of Wide Riveted Lap Joints in Aeronautical Structures

doi:10.3901/JME.2018.24.160

Abstract

Abstract: A three-dimensional finite element model of the wide triple-row riveted lap joints is developed by ANSYS software in order to analyze the mechanical properties of the riveted skin in aircraft structures. The loading properties of the wide riveted lap joints under constant tensile load are computed using the nonlinear finite element method. The surface-to-surface nonlinear contact problems and the effect of rivet interference fit, as well as the pre-loads of rivets are included in the numerical simulations. The deformation of the wide riveted lap joints induced by secondary bending and tertiary bending are presented by reading the structural displacements along the predefined paths in the wide riveted lap joints. Von Mises stress contour shows a more serious stress concentration around the countersink near the outer side of the lap joints. The load transferred by every rivet is calculated, and the distribution of rivet loads on the wide lap joints can be observed. The load transfer ratio of each row of rivets are obtained with different pre-load and interference fit. The numerical computation about mechanical characteristics of the wide riveted lap joints provides for the further studies on multiple-site damage of riveted lap joints and its fatigue life.

Key words: interference fit, load transfer ratio, riveted lap joints, three-dimensional finite element analysis

CLC Number:

V215
O346

WANG Yunliang, YU Dazhao, LIU Shuyan, LIU Xiangyi. Numerical Study on Loading Properties of Wide Riveted Lap Joints in Aeronautical Structures[J]. Journal of Mechanical Engineering, 2018, 54(24): 160-165.

References

[1] NIU M C Y. Airframe stress analysis and sizing(second edition)[M]. Hong Kong, China:Conmilit Press Ltd., 1997.
[2] ATRE A. A finite element and experimental investigation on the fatigue of riveted lap joints in aircraft applications[D]. Georgia:Georgia Institute of Technology, 2006.
[3] PAVANKUMAR D V T G, SATHIYANAARAYAN S, KALYANASUNDARAM S, et al. Further numerical and experimental failure studies on single and multi-row riveted lap joints[J]. Engineering Failure Analysis, 2012(20):9-24.
[4] SKORUPA M, SKORUPA A, MACHNIEWICZ T, et al. Effect of production variables on the fatigue behaviour of riveted lap joints[J]. International Journal of Fatigue, 2010(32):996-1003.
[5] MOREIRA P M G P, DE MATOS P F P, CAMANHO P P, et al. Stress intensity factor and load transfer analysis of a cracked riveted lap joint[J]. Materials and Design, 2007(28):1263-1270.
[6] JONES R, MOLENT L, PITT S. Understanding crack growth in fuselage lap joints[J]. Theoretical and Applied Fracture Mechanics, 2008(49):38-50.
[7] 郁大照. 腐蚀和多处损伤对飞机结构完整性的影响研究[D]. 烟台:海军航空工程学院, 2008. YU Dazhao. Research on the influence of corrosion and MSD on aircraft structural integrity[D]. Yantai:Naval Aeronautical and Astronautical University, 2008.
[8] LI G, SHI G Q, BELLINGER N C. Stress in triple-row riveted lap joints under the influence of specific factors[J]. Journal of Aircraft, 2011, 48(2):527-539.
[9] 郁大照, 陈跃良, 柳文林, 等. 螺接搭接件的力学特性试验及三维有限元分析[J]. 机械强度, 2011, 33(6):855-861. YU Dazhao, CHEN Yueliang, LIU Wenlin, et al. Study on mechanical properties of bolted joints based on experiment and three-dimensional finite element[J]. Journal of Mechanical Strength, 2011, 33(6):855-861.
[10] GALATOLO R, LAZZERI R. Experiments and model predictions for fatigue crack propagation in riveted lap-joints with multiple site damage[J]. Fatigue and Fracture of Engineering Materials and Structures, 2016, 39(3), 307-319.
[11] 郭玉瑛. 飞机设计手册第3册:材料(上)[M]. 北京:航空工业出版社, 1997. GUO Yingyu. Manual of aircraft design(3):Material[M]. Beijing:Aeronautical Industry Press, 1997.
[12] 舒文军, 何宇廷, 刘仁宇, 等. 板间摩擦对航空搭接件疲劳性能的影响[J]. 南京航空航天大学学报, 2010, 42(3):347-350. SHU Wenjun, HE Yuting, LIU Renyu, et al. Friction effects between plates on fatigue performance of aircraft joints[J]. Journal of Nanjing University of Aeronautics and Astronautics, 2010, 42(3):347-350.
[13] RANS C D, STRAZNICKY P V. Effects of rivet installation on residual stresses and secondary bending stresses in a riveted lap joint[C]//48th AIAA/ASME/ASCE/AHS/ASC Structures Structural Dynamics and Materials Conference, Honolulu Hawaii, 2007.
[14] SKORUPA A, SKORUPA M. Riveted lap joints in aircraft fuselage design analysis and properties[M]. Heidelberg:Springer Science Business Media Dordrecht, 2012.
[15] 郁大照, 陈跃良. 枕垫应力对飞机搭接件完整性的影响研究[J]. 机械工程学报, 2012, 48(12):37-42. YU Dazhao, CHEN Yueliang. Effect of pillowing stress on structual integrity of lap joint in aircraft[J]. Journal of Mechanical Engineering, 2012, 48(12):37-42.
[16] LI G, SHI G Q, BELLINGER N C. Studies of residual stress in single-row countersunk riveted lap joints[J]. Journal of Aircraft, 2006, 43(3):592-599.
[17] NEWMAN J C J, RAMAKRISHNAN R. Fatigue and crack-growth analyses of riveted lap-joints in a retired aircraft[J]. International Journal of Fatigue, 2016(82):342-349.
[18] KECELİOGLU G. Stress and fracture analysis of riveted joints[D]. Ankara Turkey:Middle East Technical University, 2008.
[19] 田冬凤. 飞机身铆接构件疲劳性能研究[D]. 南京:南京航空航天大学, 2013. TIAN Dongfeng. Research on fatigue property of riveted component for aircraft fuselage[D]. Nanjing:Nanjing University of Aeronautics and Astronautics, 2013.