Date of Award
Doctor of Philosophy
Electrical and Computer Engineering
Electrical Engineering(Electromagnetics, Microwave,and Nondestructive Evaluation)
The physical modeling and simulation of nondestructive evaluation (NDE) measurements has a major role in the advancement of NDE and structural health monitoring (SHM). In ultrasonic NDE (UNDE) simulations, evaluating the scattering of ultrasound by defects is a computationally-intensive process. Many UNDE system models treat the scattering process using exact analytical methods or high-frequency approximations such as the Kirchhoff approximation (KA) to make the simulation effort tractable. These methods naturally have a limited scope. This thesis aims to supplement the existing scattering models with fast and memory-efficient full-wave models that are based on the boundary element method (BEM).
Gurrala, Praveen, "Full-wave modeling of ultrasonic scattering for non-destructive evaluation" (2020). Graduate Theses and Dissertations. 18133.