Experimental aspects of the Born approximation theory for elastic‐wave scattering from flaw

摘要

In order to study ultrasonic‐wave scattering from hidden defects in metals an experimental system was developed to study the relationships between the various parameters of the scattered field and the scattering centers. Experimental results were analyzed based on Born approximation theory recently developed for elastic‐wave scattering J.E. Gubernatis, E. Domany, and J.A. Krumhansl, J. Appl. Phys. 48, 2804–2811 (1977); 48, 2812 (1977). For an incident longitudinal wave the scattered longintudinal and shear waves from various shapes and sizes of ellipsoidal cavities in titanium were analyzed. It appears that the Born approximation theory agrees reasonably well with experiment.