By essence, a defect weakens the structural properties of a component. Its mechanical behavior under a load is consequently modified. This modification can be localized and of very little importance for the entire structure life cycle. During daily use, it faces fatigue, chemical erosion, and weather variations. Under these circumstances, a small defect can become a serious threat.
Due to its nanometer sensitivity on displacement variations, Shearography can easily help any inspector to detect all of these small defects before they expand. A slight heat input of a few degrees is generally enough to trigger a visible skin displacement of the inspected surface. Dantec’s Shearography heat excitation solutions are reliable and extremely fast NDT solutions for any composite inspection needs.