Thermograhic inspection of defects on railway bogie

초록

Infrared thermography is a relatively new non-destructive inspection technique used for a wide range of applications. By examining the infrared thermal signature of damage on bogie frame, it was possible to generate a relationship matching weld defect to thermal image phase angle,using appropriate experimental/numerical calibration. The results showed that with the additional data sets obtained from further experimental tests, the clarity of this relationship will be greatly improved to a level whereby infrared thermal contours can be directly translated into the precise subsurface behaviour of a bogie damage.