Analysis of Composite Bonded/Bolted Joints Used in Repairing

The performance of composite repairing using single lapped joints is sensitive to factors such as ply stacking sequence of laminate, bonding surface preparation, anisotropic nature of adherend, as well as bearing and load transfer from one adherend to the other. This research is focused to investigate the stress distributions in laminated composite joints with multiple pin loads using finite element analysis. The structural response of various configurations of single lap joints, namely bonded, bolted and bonded-bolted joints, are analyzed by three-dimensional finite element method. A comparison of the results obtained using finite element analysis is conducted with experimental results and the results are validated. Parametric study is conducted to investigate the effect of stress distribution and load transfer due to ply stacking sequence of laminate.