Visualization of the Propagation Behavior of Ultrasonic Waves in 3D-printed CFRP

Abstract

CFRP with continuous curved fibers were manufactured by using 3D-printer and ultrasonic which propagates on the CFRP was investigated. In order to visualize the propagation behavior of ultrasonic, we used Laser Ultrasonic Visualizing Inspector (LUVI). By using this equipment, we visualized the propagation on a CFRP plate which have concentrically curved fibers. As the result of the experiment, it was found that ultrasonic propagates along curved fibers. It was noted that this phenomenon affect the source localization of AE testing when conducting CFRP with curved fibers.