Safety-critical carbon fiber components, such as structural parts in machines, vehicles, aircraft or architectural elements are subject to testing.
Common methods are ultrasonic, X-ray, HF Eddy Current, Radio Wave testing or thermography.
[2] Typically, destructive tests are carried out to validate the mechanical properties, whereas NDT is used to monitor and control the manufacturing process of the CFRP parts.
[3] The aerospace industry relies on thermography testing to help detect defects in the carbon fiber components.
This test is used to detect any defects that could cause the carbon fiber component to fail resulting in a catastrophe.
However, typically relevant quality criteria of the texture are fiber orientation, gaps, wrinkles, overlaps, distortion, undulation, uniformity[11] as well as defects in the matrix delamination, inclusion, cracks, curing, void, debonding.