05/13/2026
In bonded composite structures, the bond line is where failures start — and where most inspection methods struggle to see clearly.
Laser shearography is built for exactly that problem. The technique applies a small load to the part (vacuum, thermal, or acoustic) and uses laser interferometry to measure how the surface deforms. A good bond deforms evenly. A disbond, void, or delamination doesn't, and shearography picks up the difference at the sub-micron level.
CICNDT uses Dantec shearography equipment, the same platform aerospace primes rely on for honeycomb panels, bonded repairs, and composite control surfaces. The advantage over point-by-point ultrasonic methods is coverage — shearography inspects wide areas in a single capture, which matters when you're looking at large bonded assemblies.
It's not a replacement for ultrasonics. It's the right tool when bond integrity is the question.
Learn more: https://bit.ly/4eOoCWZ