Riveting is an important connection method for carbon fiber reinforced polymer (CFRP) composites

however

traditional riveting is highly susceptible to causing excessive interference and severe damage to CFRP joints

leading to potential quality hazards. This study experimentally investigated the damage behavior of CFRP specimens subjected to various riveting methods

including straight riveting

washer riveting

chuck bushing riveting

and washer-chuck bushing riveting. The results indicate that the average interference of straight riveted joints is the highest

substantially greater than 2%

with joints exhibiting the most severe cross-sectional damage. In contrast

joints riveted with washers show an average interference of 0.757% with virtually no damage to the joints’ cross-section. Joints riveted with chuck bushings are of an average interference of 0.956%

but the tilt of rivet head causes compressive deformation and other damages around the hole. The combination of washer and chuck bushing riveting results in an average interference of –0.915%

without forming effective interference and observing no tangible damage on the joints’ cross-section.