Prediction of angle beam ultrasonic testing signals using multi-Gaussian beams

Abstract

Interpretation of angle beam ultrasonic testing (UT) signals from welded joints is quite often very difficult due to the presence of non-relevant signals from geometrical reflectors. To provide the necessary information for the reliable interpretation of UT signals, quantitative prediction of geometrical reflection signals is strongly desired. To address such a need, a systematic way is proposed using multi-Gaussian beams, and its performance is demonstrated by predicting angle beam UT signals from geometrical reflectors such as corners and counter bores were predicted with initial experimental validation.