Numerical Modeling of Ultrasound Phased Array for Non-destructive Testing of Composites

Abstract

Ulrasound transducers with phased arrays are used in multiple areas, including medical and technical applications. The numerical modeling of the composite ultrasound requires high spatial and temporal resolution with a full viscoelastic anisotropic material model. The grid-characteristic method that can provide it is demanding in terms of calculation time. A problem of optimal adjusting of the phased array requires a fast and effective numerical method. The retracing method for acoustics that is used for ultrasound and seismic problems, improved with a wavefront construction method was implemented. A technique of modeling the ultrasound of composites with good accuracy and in a reasonable time is proposed.