Study on tensile strength of composite double-lap joint
An experimental and analytical study on ultimate tensile strength of composite double-lap joints with different adhesive thicknesses is employed in the paper, test results indicate the major failure mode of joints is adhesive shear failure and the ultimate strength of joints increasing with thicker adhesive. Analytical model is developed to investigate the adhesive failure of double-lap joint based on the experiments. The model takes into account anisotropy of each ply in the composite laminates and elasticperfectly plastic behavior of the adhesive in the joints. The validity of analytical model for calculating shear strain/stress distribution is certified by comparing with finite model results. Maximum shear strain criterion is adopted in the analytical model to predict the ultimate tensile load of double-lap joint. Good agreement of the analytical predictions with the experimental results is obtained.
Composite Structure Double-lap joint Analytical model Tensile strength
Liu Sui Guan Zhidong Guo Xia Yan Dongxiu Chen Ping Liu Jia
School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Be COMAC Shanghai Aircraft Manufacturing CO., Ltd Composite Manufacturing Center of Commercial Aircraft
国际会议
2011 International Conference on Mechatronics and Applied Mechanics(2011年机电一体化与应用力学国际会议 ICMAM 2011)
香港
英文
1519-1526
2011-12-27（万方平台首次上网日期，不代表论文的发表时间）