Title :
Modeling of ultrasonic fields and their interaction with defects
Author :
Calmon, P. ; Lhemery, A. ; Paradis, L.
Author_Institution :
CEA, Centre d´´Etudes Nucleaires de Saclay, Gif-sur-Yvette, France
Abstract :
Ultrasonic modeling at the French Atomic Energy Commission (CEA) is based onto continuous developments of two approximate models covering realistic commonly encountered NDT configurations. The first model, based on an extension of the Rayleigh integral, is dedicated to the prediction of ultrasonic fields radiated by arbitrary transducers. Being computed the field may be inputted in a model of the echo formation. This two step modeling yields the prediction of echo-structures detected with transducer scanning. The associated software is implanted in the CIVA system for processing and imaging multiple technique NDT data
Keywords :
flaw detection; modelling; ultrasonic materials testing; ultrasonic transducers; Rayleigh integral; approximate models; arbitrary transducers; associated software; defects; echo formation; echo-structures; imaging; interaction; model; multiple technique NDT data; processing; realistic commonly encountered NDT configurations; transducer scanning; two step modeling; ultrasonic fields; ultrasonic modeling; Anisotropic magnetoresistance; Atomic measurements; Context modeling; Couplings; Geometry; Optical surface waves; Predictive models; Solid modeling; Ultrasonic imaging; Ultrasonic transducers;
Conference_Titel :
Ultrasonics Symposium, 1998. Proceedings., 1998 IEEE
Conference_Location :
Sendai
Print_ISBN :
0-7803-4095-7
DOI :
10.1109/ULTSYM.1998.762263
