Patent ID: 8812251

Claim:
A system for monitoring adhesive integrity within a cured bondline of a bonded structural assembly, the system comprising: a bonded structural assembly having a cured bondline, the cured bondline comprising: an adhesive layer; a scrim ply layer integrated with the adhesive layer; and, an electrical sensor network integrated with the scrim ply layer, the electrical sensor network having sensor elements in the form of active sensor nodes integrated into the scrim ply layer and forming a network grid pattern across the scrim ply layer, and wherein the electrical sensor network comprises sensor elements having modalities based on ultrasonic wave propagation and electromechanical impedance; an electrical power source for providing electrical power to the electrical sensor network; and, a digital data communications network for retrieving and processing data from the electrical sensor network, wherein the electrical sensor network monitors adhesive integrity within the cured bondline on demand by interpreting changes in local dynamic responses and electromechanical properties directly measured within the cured bondline.