The simulation of ultrasonic imaging in the case of the objects with a complex geometry

Abstract

The ultrasonic NDT simulation method and algorithm have been developed. The developed technique enables to take into account direct, mixed, and specular reflections. The NDT simulation algorithm is based on a diffraction model. The B-scan image analysis method, taking into account specular reflections, have been developed. The most typical defect orientation cases were analysed. The aluminium test sample with side drilled holes was analysed using computer based simulation and experimental testing. The simulation of V-weld inspection was performed too. The comparison of the simulated results with experimental data has showed, good correspondence especially in a far field zone. The developed algorithms are relatively fast and enables to simulate and analyse data on a conventional personal computer.