Ultrasonic Flaw Detection And Sizing For Quantitative Nondestructive Evaluation

B. DeFacio

doi:10.1117/12.935835

22 September 1983 Ultrasonic Flaw Detection And Sizing For Quantitative Nondestructive Evaluation

B. DeFacio

Proceedings Volume 0413, Inverse Optics I; (1983) https://doi.org/10.1117/12.935835
Event: 1983 Technical Symposium East, 1983, Arlington, United States

Abstract

The frequency-domain Neumann-Born approximation is used to study the determination of the radii and material parameters of spherical flaws. Bandwidth limiting and the effects of noise are studied. An eikonal approximation by Rose and DeFacio was also used. Only the reconstruction using a single scattering angle is addressed. Backscattered amplitudes (θ = 180°) and near forward scattering amplitudes at θ = 30° were not as successful as θ = 60° data. The radii were determined better than material parameters and in the case of a single backscatter with 5% noise and fairly strong scattering no radius was determined.

Citation Download Citation

B. DeFacio "Ultrasonic Flaw Detection And Sizing For Quantitative Nondestructive Evaluation", Proc. SPIE 0413, Inverse Optics I, (22 September 1983); https://doi.org/10.1117/12.935835

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