Conformal Array Laser Imager for Bondline Evaluation&Repair (CALIBER)

The NAVY solicits new non-destructive inspection (NDI) methods to address detection and evaluation of kissing bonds and bondline integrity in aerospace composites since no currently accepted standard exists. In response AS & T Inc. propose, the Conformal Array Laser Imager for Bondline Evaluation and Repair (CALIBER), designed expressly for this purpose. The novelty of the proposed approach lies in the integration of a new sensor technology developed by AS & T with a new NDI method, both of which have been independently developed well beyond the conceptual stage. The development of CALIBER will provide an NDI sensor whose output images reveal bondline adhesive strength and the lower threshold which qualify as kissing bonds. In form and function, CALIBER is geared towards field deployment. Founded on a previously successful NDI sensor developed for detection of hidden delaminations, disbonds and crushed core damage in composites, this effort therefore builds upon and broadens the applicability of a new NDI technology. The proposed development is anticipated to lead to a portable, non-contact inspection instrument for rapid detection and evaluation of kissing bonds in aerospace composites in addition to a broader range of flight-line composite NDI tasks.