Thank you very much for the very useful info given on TOFD. After reading all the replies, I am getting a fundamental question. What is the criteria for choosing UT or RT or TOFD or any other method with refeence to the defect detectability in size and orientation ? How is it related to the structural applications or pressure vessels ? Can some one pl throw some light on this ?
An article in “Composites World Magazine” showcases Non
Destructive Testing of aero-structures
with Laser Shearography.
Over the years Dantec Dynamics has supplied many solutions for the
aerospace industry. Referring to specific customer projects
several of these cases are examined to outline the advantages of
using Laser Shearography for automated defect detection.
The conformability is obtained with a flexible membrane filled with water between the transducer and
the inspected component. The coupling between the membrane and the component requires a small quantity of water or couplant. The conformable wedge combines the acoustic performance of immersion technique with good coupling and low attenuation.