Example of NDT by dynamic excitation applied on GLARE

The examples shows a glare panel (size 500x500, see below) with de-bondings (Ø60mm) prepared by Airbus Bremen. Glare is a combination of Aluminium plates with composite layers used for the new Airbus A380F

 
Airbus A380 F, computer graphic by I3m, www.airbus.com

The defects (dis-bonds or delaminations) are prepared in different depth between the aluminum plates. The defects become visible by dynamic excitation at their natural frequencies as show below by the supperposed measurement results.

cross-section of glare panel

cross-section of glare panel