Modeling of propagation and echo formation in a multilayered structure

In the aim of simulating the ultrasonic inspection of multilayered structur e, we propose a hybrid model, based on transfer matrices and ray tracing fo rmalisms. This approach allows one to predict the response of structures co ntaining defects of finite size such as delaminations or adhesion defect. ( C) 2000 Elsevier Science B.V. All rights reserved.