We proposed a new reinforcement layer for CFRP bolted joints C layer and R layer that is in accordance with maximum stress and minimum stress. And tried to elucidate their reinforcement effect. C layer has the effect of increasing the ultimate bearing strength because of the hoop effect. C layer has the effect of reinforcement for shear failure mode. R layer has the effect that is to weaken the stress caused by initial bearing stress and ultimate bearing stress when broken by bearing failure mode.
