Previously we have shown that the inverse Born approximation allows an accurate determination of the radius of spherical flaws in Ti. Here we report the results of extending that analysis to spheroidal voids. Both oblate and prolate spheroids are considered. Using scattering amplitude generated by the T-matrix method, we find that both the major and minor axes of 2-1 spheroids are accurately determined. Inversion results using experimental data will be presented for the 2-1 oblate spheroid: a comparison of the experimental and theoretical results will be given
To exploit theoretical advances in elastic wave inverse scattering, an automated multiviewing ultras...
The report summarizes the design and early results of scattering experiments on fl aw.s of complex s...
The previous papers present a number of techniques for quantitatively identifying the size, shape an...
Previously we have shown that the inverse Born approximation allows an accurate determination of the...
Previously we have shown that the inverse Born approximation allows an accurate determination of the...
One of the most important effects of complex part geometry is that the available entrance and exit a...
Ultrasonic flaw sizing is critical in nondestructive evaluation. However, the data available for siz...
The Inverse Born Approximation (IBA) to the elastic wave inverse scattering problem is known to give...
Empirical solutions via the adaptive learning network methodology have been obtained to measure char...
We present a simple technique for determining the size of voids by the inversion of backscattered ul...
Experimental measurements have been carried out in previous efforts on the scattering of elastic wav...
Ultrasonic waves returning from an internal bulk flaw to a wideband transducer contain information o...
An algorithm is developed to characterize the type and size of a flaw by matching the power spectrum...
The Born Inversions are a set of techniques for reconstructing the shape of a flaw based on the scat...
We report an approximate technique for determining the characteristics of flaws in elastic media fro...
To exploit theoretical advances in elastic wave inverse scattering, an automated multiviewing ultras...
The report summarizes the design and early results of scattering experiments on fl aw.s of complex s...
The previous papers present a number of techniques for quantitatively identifying the size, shape an...
Previously we have shown that the inverse Born approximation allows an accurate determination of the...
Previously we have shown that the inverse Born approximation allows an accurate determination of the...
One of the most important effects of complex part geometry is that the available entrance and exit a...
Ultrasonic flaw sizing is critical in nondestructive evaluation. However, the data available for siz...
The Inverse Born Approximation (IBA) to the elastic wave inverse scattering problem is known to give...
Empirical solutions via the adaptive learning network methodology have been obtained to measure char...
We present a simple technique for determining the size of voids by the inversion of backscattered ul...
Experimental measurements have been carried out in previous efforts on the scattering of elastic wav...
Ultrasonic waves returning from an internal bulk flaw to a wideband transducer contain information o...
An algorithm is developed to characterize the type and size of a flaw by matching the power spectrum...
The Born Inversions are a set of techniques for reconstructing the shape of a flaw based on the scat...
We report an approximate technique for determining the characteristics of flaws in elastic media fro...
To exploit theoretical advances in elastic wave inverse scattering, an automated multiviewing ultras...
The report summarizes the design and early results of scattering experiments on fl aw.s of complex s...
The previous papers present a number of techniques for quantitatively identifying the size, shape an...