Deterioration in bridges and other structures commonly manifests from subsurface damage that cannot be detected through visual inspections. Once the subsurface damage is observed through visual inspection, deterioration has advanced to a stage where significant repairs or even replacement may be required. Technologies that can detect the onset of deterioration in its earliest stages allow
Bonded composite airframe structures offer a potential to achieve more affordable manufacturing and more efficient structures, ultimately meeting the goals of the Air Force for increased range and reduced fuel consumption. Laser bond inspection (LBI) in conjunction with bond process control is an enabling technology to transition primary bonded composite structures and realize these goals.