A Feasibility Study for a Nonlinear Guided Wave Mixing Technique

Ultrasonic non-destructive testing is an effective means of examining objects without destroying them. Among such testing, ultrasonic nonlinear evaluation used to detect micro-damage, as corrosion or plastic deformation. In terms micro-damage evaluation, the data that comes from amplitude comparison in frequency domain plays a significant role. Its technique and parameter are called nonlinearity. A certain portion nonlinearity equipment system, while other material. The former system nonlinearity, latter material System interferes with interpretation, because its source not this study, order minimize effects, mixing implemented. To use large area inspection ability guided wave, main research issue paper focused on wave technique. Moreover, several bulk theory equations become good concepts for theoretical conventional experimental results compared study confirm reliability. This can play important role quantitatively discriminating fine damage by minimizing system.