Composite Damage Detection Using a Novel Ultrasonic Method

The nondestructive evaluation (NDE) of complex composite structures often requires labor intensive, expensive methods due to multiple failure modes, difficulty detecting damage, and the large scale of the structures. Conventional NDE methods have been successful but can be improved by incorporating ideas from other fields. In this work, the technology developed in the infrared camera industry is used and incorporated into an ultrasound system to produce an inspection tool with a wide field of view that displays video images of damage in composite structures in real time. Benefits are higher sensitivity, increased inspection speed, and intuitive interpretation of results.