Investigation on Failure Behaviors and Optimization of Composite Ω Joint
In this article, failure behaviors and optimization of integrated composite Ω joint under tension load were investigated with experiment and numerical simulation methods. Tensile tests of Ω joints with three glue heights (30mm,40mm and 50mm) are carried out with two constraint types. The experimental results show that damage behavior of test pieces appears as the delamination of 7t reinforcement. Compared with 40mm and 50mm glue height, 30mm height is a better choice. Fixed on 71 reinforcement can prevent joint from large deformation and prevent delamination to a great extent when contrasted on skin laminates, then have higher tensile strength. Given Ω joint is simulated with ABAQUS Code, and stress distribution and damage evolution are acquired. Simulation results are consistent with test results. Failure process of Ω joint is acquired according to the corresponding criterion of adhesive and composite laminate, and the result of analysis coincides with the experimental result generally.
Ω joint composite finite element analysis optimization
Ye Congjie Jiao Guiqiong Wang Bo Zha Dingping
Department of Engineering Mechanics, Northwestern Polytechnical University, Xian 710129, China China Helicopter Research and Development Institute, Jingdezhen 333001, China
国际会议
2010 Asia-Pacific International Symposium on Aerospace Technology(2010 亚太航空航天技术研讨会 APISAT 2010)
西安
英文
832-835
2010-09-01（万方平台首次上网日期，不代表论文的发表时间）