Optimization of bonded structural repairing on CFRP plates

The aim of this study is to improve the mechanical resistance of a structur al bonded repair on a plate made of Carbon Fiber Reinforced Plastic (CFRP) with a circular damage. A first approach is made by doing a complete analys is of the type of repair which consists in a lay-up of wet carbon prepreg p lies. Experimental and numerical results are produced, which give reference results for this basic model of repair under tension load. Then, the evolu tion of these results is examined according to the variation of critical pa rameters, such as bonding length and overlapping length, which leads to opt imal values to improve the repairing efficiency. Finally, the results provi de the opportunity to reduce the amount of repairing plies for an even bett er repair performance.