Numerical simulation of phased-array laser ultrasound and its application for defect inspection

摘要

In this paper, a numerical code is developed for the analysis of phased-array laser ultrasound. The signal enhancement of ultrasonic waves induced by a multi-beam laser source in phased array is simulated by using finite element method (FEM). The use of phased-array laser ultrasound for crack inspection with shadow method is investigated by simulation method.