Resonance testing is an effective method for verifying the structure of thin layers of metal or laminate that are bonded together.
A second variation, mechanical impedance analysis (MIA) helps us to detect defects between the skin and core-cells of sandwich structures.
Lastly, pitch-catch technique is particularly useful for detecting skin to core disbands in honeycomb structures.
Most aircraft structures consist of thin layers of aluminium bonded together. Bond testing can be a quick, inexpensive and highly accurate method of finding disbonded areas in aircraft structures (both at manufacturing stage and once in-service).
Helicopter blades, skin panels and many other aircraft contain sandwich structures made from aluminium, fiberglass, or carbon/graphite over a honeycomb core. Bond testing is a highly portable and cost-effective means of verifying structural integrity and ensuring the aircraft is ready for flight.
All our inspectors are level II or level III certified to EN4179 / NAS410.