Measurements and 3D simulation of ultrasonic directive beam transmission through a water-immersed steel plate

A 3D full-wave angular spectrum simulation model for reflection and transmission of ultrasonic directive circular piston sound fields, from and through a fluid-immersed isotropic solid plate has been implemented.

A 3D full-wave angular spectrum simulation model for reflection and transmission of ultrasonic directive circular piston sound fields, from and through a fluid-immersed isotropic solid plate has been implemented. Transmitted sound fields, frequency spectra and time-domain signals through a water-immersed steel plate have been studied theoretically with the 3D model and compared with experimental results for normal and oblique incident angles. Longitudinal and shear wave velocities for the steel plate have been determined from measured transmitted frequency response at normal incidence.