Tracing Modelling for Preparing and Assessing Technical Justifications
R. Muñox, M. Borrás, E. Cabrera, R. Martínez-Oña, Tecnatom, S. A. , Madrid, Spain
ABSTRACT Technical justifications are important elements in the framework of inspection qualification. They might include physical reasoning, experimental results, and modelling results. The use of mathematical models allow to expand the breadth of applicability of results, and simplify and reduce the cost of the development. The design of inspection techniques on simple weld geometries is straightforward and simple of assessing. On the contrary, in complex geometries it is a burdensome and costly process. By using computerised ray tracing modelling, this process can be reduced and the capability of the techniques can also be identified. Thus, these tools provide a mean of reducing the extent of experimental trials by permitting extrapolation from the model and the existing data. Midas Ray Tracing Modelling programme computes the trajectory of ultrasonic central beams inside the components to be tested. In addition, defects can be postulated and the programme calculates the probe parameters for optimum detection, the technique coverage, visibility maps, and amplitude response maps. The paper shows the application of this programme on existing complex geometries and how can be used to identify the capability of a specific inspection technique.
Publication Source: First International Conference on NDE in Relation to Structural Integrity for Nuclear and Pressurised Components , 20 - 22 October 1998, Amsterdam, Netherlands. Held by the Joint Research Centre of the European Commission.
Publisher: Woodhead Publishing Limited
© NDTnet
NDTnet
