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Ultrasonic Quantification of Volume Loss in Thick-Wall Components

P. GONG, T. R. HAY, D. W. GREVE, W. R. JUNKER, I. J. OPPENHEIM

Abstract


In this paper, we present ultrasonic signal processing methods for the quantification of volume loss in a thick-wall aluminum tube, including temperature compensation, along with a novel experimental sequence for control purposes. The experimental sequence contains damage steps and null (no-damage) steps, randomly distributed and of random time duration. For the quantification, circumferentially propagating ultrasonic waves are used because they can repeatedly sample the volume loss area in the tube. Our experimental results show that the ultrasonic signal processing methods used in this paper, combined with the optimal signal stretching temperature compensation technique, can successfully quantify the volume loss.

doi: 10.12783/SHM2015/89


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