Location

Brunswick, ME

Start Date

1-1-1992 12:00 AM

Description

This paper proposes a means of inverting impedance data to reconstruct flaws. It combines inverse scattering theory and an exact iterative algorithm via the finite element method which is incorporated to evaluate the integral kernel. This method offers the advantage of simplifying the inversion process thus extending it more easily to complicated geometries by virtue of the flexibility of the finite element method. Two-dimensional (2D) reconstruction results for a flaw in a metallic full-space as well as a surface-breaking crack demonstrate the potential of the implemented algorithm.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

11A

Chapter

Chapter 3: Interpretive Signal Processing and Image Reconstruction

Section

Imaging and Inversion Techniques

Pages

773-780

DOI

10.1007/978-1-4615-3344-3_99

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

A Hybrid Finite Element/Method of Moment Formulation for Single Frequency Eddy-Current Inversion

Brunswick, ME

This paper proposes a means of inverting impedance data to reconstruct flaws. It combines inverse scattering theory and an exact iterative algorithm via the finite element method which is incorporated to evaluate the integral kernel. This method offers the advantage of simplifying the inversion process thus extending it more easily to complicated geometries by virtue of the flexibility of the finite element method. Two-dimensional (2D) reconstruction results for a flaw in a metallic full-space as well as a surface-breaking crack demonstrate the potential of the implemented algorithm.