09:40 Feb-20-2002 crack depth measureing by tip method
>I'm trying to measure cracks depth by tip >diffraction method in a steel thin plate. > > >My questions are: >1. What angle is the best for this job and why? > >2. Is the 180 degree phase chenge between root and tip >signals, for 45 degree refracted wave or for all >angles? > >3. would you please send me some theoretical >literature(if its possible)or reference? > > > best whishes >
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.