AM.II.B.S8
SkillPerform a tap test on composite material.
From the FAA library
- Chapter 10: Inspection Concepts & Techniques › Inspection of Composites › Tap Testing
thick. On honeycomb structures, both sides need to be tested. Tap testing on one side alone would not detect debonding on the opposite side. [Figure 10-37] Electrical Conductivity Composite structures are not inherently electrically conductive. Some aircraft, because ... type of use, are not affected by electrical issues. Manufacturers of other aircraft, such as high-speed, high-performance jets, are required to utilize various methods of incorporating aluminum or copper into their structures to make them conductive. The aluminum…
- Chapter 7: Propellers › Propeller Inspection & Maintenance › Composite Propeller Inspection
avoid confusing the sounds, coin tap the cuff area and the transition area between the cuff and the blade separately from the blade area. Additional nondestructive testing (NDT) techniques for composite materials, such as phased array inspections, and ultrasound inspections ... more detailed inspections. Repairs to propellers are often limited to minor type repairs. Certificated mechanics are not allowed to perform major repairs on propellers. Major repairs need to be accomplished by a certificated propeller repair station…
- Chapter 7: Advanced Composite Materials › Solid Laminates › Bonded Flush Patch Repairs
used to inspect for damage in composite structures. The simplest technique is visual inspection, in which whitening due to delamination and/or resin cracking can be used to indicate the damage area in semitransparent composites, such as glass-polyester and glass ... deep below the surface, and damage in nontransparent composites, such as carbon and aramid laminates. A popular technique is tap testing, in which a lightweight object, such as a coin or hammer, is used to locate damage. The main benefits…