Structural health monitoring of a CFRP structural bonded repair by using a carbon nanotube modified adhesive film

Crack-sensing capabilities of a carbon nanotube (CNT) doped adhesive film have been analysed from coupon level to a composite repaired panel. Mechanical performance is not negatively affected by the addition of CNTs, due to their good distribution inside the adhesive. Moreover, the electrical resistance increases with displacement in both Single Lap Shear (SLS) and Mode-I joints, due to the combined effect of adhesive deformation and crack...