NONDESTRUCTIVE TESTING OF MATERIALS USING TV-SHEAROGRAPHY

Recent developments of shearography open new possibilities for fast, r eliable and economic nondestructive testing of materials. Now deformat ions of the surface of the component to be inspected are registered wi th a video camera and processed with a computer. This leeds to rapidly increased testing velocity and enables automatic evaluation of the te sting results. TV-shearography is demonstrated at some nondestructive testing applications of dashboards, aeroplane composite components and pipeline inspection.