EVALUATION OF SANDWICH MATERIALS USING ULTRASONIC AIR-COUPLED SCANNING TECHNIQUE

摘要

The ultrasonic Air-coupled scanning technique was used to evaluate the quality of sandwich panels. Scans of panels with defects such as debond between skin laminate and foam core, core crack and defects arising from mechanical tests are presented. The air-coupled technique is an easy technique to use since it can be performed directly in atmospheric air.