Application of Elastic Wave Scattering Theory to the Detection and Characterization of Flaws in Structural Materials

摘要

The uses of elastic wave scattering theory in ultrasonic nondestructive evaluation are reviewed. The present understanding of the scattering from stress free, elliptical cracks in unbounded media is first summarized. This is followed by a discussion of additional problems imposed by the topography of real cracks and part surfaces. Finally, the increasing use of models in engineering applications is illustrated by examples taken from the inspection of nuclear power plant piping and pressure vessel welds and aircraft turbine engine rotor components. (ERA citation 09:033915)