There has been an increase in the use of composite materials in the aerospace industry which is driving a need for new NDT techniques that can rapidly scan large structures and provide quantitative data on the material integrity. In many applications there are common requirements for the ultrasonic inspection of composites for porosity, delaminations, foreign body contamination and fibre wrinkling. Traditional methods of ultrasonic inspection require the use of a single point probe or a multiplexed group of probes. NDT Solutions have developed new inspection techniques based on ultrasonic arrays housed within a rubber coupled wheel sensor. The wheel can be manually applied or scanned over the structure with an automated scanning system. Applications for the technology include real time imaging and reporting of impact damage, porosity sizing, delaminations and fibre wrinkles. This paper has presented a novel scanning system utilising phased arrays and rapid data capture to provide a real-time C-scan and B-scan imaging capability for large aerospace composite structures. Results have been presented which clearly show the benefit of high resolution B-scan images for the inspection and analysis of composite features such as impact damage and porosity.
Rapid phased array ultrasonic imaging of large area composite aerospace structures
Schnelle Abbildung großflächiger Verbundstrukturen von Flugzeugen mittels Ultraschallabbildung durch Gruppenstrahler
2004
7 Seiten, 11 Bilder, 2 Quellen
(Nicht paginiert)
Conference paper
Storage medium
English
Ultrasonic Phased Array Imaging Technology for the Inspection of Aerospace Composite Structures
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