5.00MHz @CFRP (Carbon Fiber)
CFRP is a very strong but light-weight material. The acoustic impedance is quite low, so a lot of the ultrasound does penetrate the CFRP depending on the surface of the CFRP (rough surface spreads the sound at penetration, smooth surface transports the sound well).
The attenuation can be high in CFRP, depending on the quality of CFRP. Layer thickness and porosity level affects how much the ultrasound is spread and attenuated.
The 5.00 MHz transducer is quite wide-band and works great for all higher quality CFRP applications to give high resolution images. Works on all CFRP applications like, impact damage, lightning strikes, bird strike, stringer debonding, honeycomb disbond, etc.
TRM Used: TRM-CI-5.00MHz – Delay line: 8mm Aqualene 320
5mm high quality monolithic CFRP flat panel from aerospace industry. It has the following characteristics.
- Impacted with a spherical bolt with 60-80 Joule force in a test lab.
Step Wedge Holes
- Milled CFRP step wedge with different size flat bottom holes in different depths.