Nondestructive Testing Method Based on Real-time Phase Shifting Shearography

The nondestructive testing method based on shearography was described in this paper, and self-designed equipment was introduced.In this equipment the precision of the detection was significantly improved with high quality of fringe patterns by means of the real-time phase shifting technology.Applications of nondestructive evaluations for rubber bonded structures which were widely used in aerospace were presented.The experimental results indicated that the developed system based on shearography could be successfully used for nondestructive testing purposes for bonded composite structures.