Mechanical fastening or riveting of metallic doublers is traditionally used for repairing cracked structures, multi-site or wide-spread darnage and any other common flaws detected during inspection of aging aircraft. This method of repair can severely reduce the initiation fatigue lifetime and the darnage tolerance of the structure [ 1]. Several researchers for example [2-6] have demonstrated t...

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Adhesive bonding is enlarging its application range as a practical method for the joining of dissimilar materials in automotives, aircrafts, microelectronics and medical devices industries replacing conventional joining techniques such as welding, bolting and riveting [1-5]. Especially for joining of fiber-reinforced polymer (FRP) composites to other structural materials such as metal, traditio...