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Research in ultrasonic NDE over the past several decades has been supported by a growing use of specialist modeling tools, to calculate wave propagation behavior, the influences of materials, guided waves, and the scattering of waves from features and defects. Model capabilities are now so good that simulations are being used in a similar manner to experiments, and some important research objectives are not possible at all without them. The NDE research group at Imperial College has worked over many years on the long-term development of some general purpose modeling tools, which have provided essential underpinning to the creation of new capabilities in NDE. This presentation will use some examples of research achievements in NDE to illustrate the vital role of advanced modeling tools in their success.
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