Size Determination of Immersed and Embedded Cylindrical Rods by Inversion of Acoustic Scattering Data

Kari Mohammadreza; Masoumeh Sadraei

doi:10.4028/www.scientific.net/AMM.798.314

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 798Size Determination of Immersed and Embedded...

Size Determination of Immersed and Embedded Cylindrical Rods by Inversion of Acoustic Scattering Data

Abstract:

In this paper, a new approach is proposed for nondestructive size determination of immersed and embedded cylindrical rods by inversion of acoustic scattering data. The normal mode expansion technique is used for modelling the scattered field. Also, the experimental backscattered field is measured using short pulse MIIR technique. The Genetic algorithm is the inversion technique used for measuring the diameters of the rods. The inversion technique matches the modelled and experimental scattered fields at resonance points, so the diameters of the rods can be estimated. The numerical results indicate that proper selection of resonance frequencies leads to accurate measurement of diameter. The proposed approach showed very good convergence and the results obtained were found to agree very well with available data.

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Periodical:

Applied Mechanics and Materials (Volume 798)

Pages:

314-318

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.798.314

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Online since:

October 2015

Authors:

Kari Mohammadreza*, Masoumeh Sadraei

Keywords:

Acoustic Scattering, Nondestructive Evaluation, Size Determination

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