Effects of Repair Temperature and Duration in Thermal Fusion Bonding on Interlaminar Shear Strength of Delaminated CF/PA6 Laminates

抄録

Out-of-plane impact is one of the most extreme forces acting on carbon fiber reinforced plastics (CFRP), because it can internally damage CFRP laminates easily. In particular, delamination is a major factor that decreases in-plane compressive strength. Therefore, a method to improve and recover this compression strength after impact is necessary. Previous research has focused on the repair of delaminated carbon fiber reinforced thermoplastics (CFRTP) laminates via thermal fusion bonding (TFB). In this study, the authors investigated the relationship between the shear strength and the repair conditions, temperature, and time of TFB for repairing delaminated CFRTP laminates. The results showed that the interlaminar shear strength increased with increasing repair temperature. A longer repair time led to a slightly higher interlaminar shear strength.