820 - Applications of bidimensional numerical simulation of elastic wave propagation in nondestructive testing
Rugina C.
Abstract
The paper presents the numerical simulation of ultrasonic wave propagation in solids with voids and inclusions similar to real case of ultrasonic nondestructive testing. The numerical method used for the 2D simulation of elastic wave propagation is the 2D L.I.S.A similar to the classical finite difference method. The recurrence equations of the numerical method are first presented. The model of the ultrasonic transducer used in simulation is also described, and its parameters determined. A comparison between numerical results and experimental data is done on a real case of nondestructive testing, in order to validate the numerical method as a tool for better understanding the signals captured on defect scopes screens
Citation
Rugina C.: Applications of bidimensional numerical simulation of elastic wave propagation in nondestructive testing, CD-ROM Proceedings of the Thirtheenth International Congress on Sound and Vibration (ICSV13), July 2-6, 2006, Vienna, Austria, Eds.: Eberhardsteiner, J.; Mang, H.A.; Waubke, H., Publisher: Vienna University of Technology, Austria, ISBN: 3-9501554-5-7
|
