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Expert system development for use in theoretical ultrasonic NDT simulations

Robinson, R.J. and McNab, A. and McNab, D. (2004) Expert system development for use in theoretical ultrasonic NDT simulations. In: 30th Annual Review of Progress in Quantitative Nondestructive Evaluation, 2003-07-27 - 2003-08-01.

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An Expert System is currently under development, which will assist an NDE engineer to obtain valid solutions of the ultrasonic response from a flaw, utilising one of four theoretical modelling programs. Warning flags are highlighted when the model is used in a manner which may result in invalid results. A level of expertise in the theoretical background of the models is required to interpret these flags. It is possible to develop a series of coded rules which represent the processes a suitably qualified engineer would adopt to address highlighted warning flags. These coded rules can then be embedded within an expert system. This paper describes the architecture of the expert system and how various rules are activated to address warning flags.