Abstract
ABSTRACTNonâdestructive detection and evaluation of stressâinduced fatigue cracks in metals is an important practical issue in several critical environments including surface transportation (steel bridges, railroad tracks, railroad car wheels, etc.), aerospace transportation (aircraft fuselage, landing gears, etc.) and power plants (steam generator tubings, etc.). Although there are several standard nonâdestructive evaluation techniques, nearâfield microwave and millimetre wave techniques have shown tremendous potential for significantly adding to the available nonâdestructive âtoolboxâ for this purpose. This paper serves as a review of recent advances made in this area and the capabilities of these techniques for detecting cracks and evaluating their various dimensional properties including determining a crack tip location accurately. These techniques include using openâended rectangular probes (in two distinct modes) and openâended coaxial probes.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have