IMAGING OF SIMPLE DEFECTS IN AUSTENITIC STEEL WELDS USING A SIMULATED ULTRASONIC ARRAY.

Autor: Connolly, G. D., Lowe, M. J. S., Rokhlin, S. I., Temple, J. A. G.
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Zdroj: AIP Conference Proceedings; 3/3/2009, Vol. 1096 Issue 1, p880-887, 8p, 3 Diagrams, 3 Charts, 4 Graphs
Abstrakt: The use of ultrasonic arrays has increased dramatically within recent years due to their ability to perform multiple types of inspection and due to the fact that phased arrays allow the immediate production of images within the structure through post-processing of received signals. These arrays offer potential advantages to the inspection of austenitic steel welds where, for reasons of safety and economics, it is important to be able to detect and size any crack-like defects that may occur during service or may have occurred during welding. This paper outlines the theory behind the generation of images of simple planar defects within a previously developed weld model. Images generated using fundamental ray-tracing theory and from finite element simulations by selected inspection procedures will be shown and compared. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index