Abstract

In composite repair terminology, the intermingled fiber joints (IFJs) concept is clearly identified as the most effective in transferring stress. However, the practical application leads to apply the laminated fiber joints (LFJs) concept for composite repair. The LFJs become almost as strong as the IFJs as the jointed zone length increases. The LFJs concept was implemented to set up the repair configuration for this work. It is identified that fracture tendency as the result of crack propagation starts from the free edges. This tendency is alleviated by applying vacuum bag to compact the laminate system. If necessary, additional accelerated curing was performed at low temperature for short time. However, this repair work preferably applying natural overnight cure to ensure the structure stability. Additionally, the repair handling and waiting purposes take 40% out of the effectively repair time. The waiting time should be anticipated in the composite repair to reduce wasting time for unproductive output.

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