Laser Bond Inspection (LBI) offers new opportunities for the characterization of adhesive bond strength that are absent from traditional NDT techniques, especially for complex shaped composite structures.The implementation of this inspection method is to verify the adhesive bonding process is under control and meets the intended design requirements.The current LBI inspection head available for the LBI system can inspect confined and easily accessible bonded structures such as wing skins bonded to a spar or stringer.This inspection head is unable toinspect localized areas (< 2x2 inches) that are difficult to access and contain adhesive bond joints that are critical to inspect. In addition, the current head is not adaptable to fiber optic delivery.This SBIR Phase I proposal is focused on creating an inspection head concept that is capable of inspecting bond joints within small localized areas and is adaptable by a quick disconnect to articulated arm of fiber optically delivered laser beams.The inspection head concept identified in this Phase I proposal will be fabricated on a future proposed Phase II SBIR after undergoing further development, design, and testing to validate its performance in normal usage during laser bond inspection.LASER BOND INSPECTION,Composite material,stress waves. Laser,bond line,bonded composite structure,Aircraft
