AN INVERSE ANALYSIS FOR CRACK IDENTIFICATION IN EDDY-CURRENT NDT OF TUBES

被引：6

作者：

LEE, HB ^{[1
]}

JUNG, HK ^{[1
]}

HAHN, SY ^{[1
]}

CHUNG, JK ^{[1
]}

机构：

[1] KANGWON NATL UNIV, DEPT ELECT ENGN, CHUNCHON 200701, SOUTH KOREA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1994年 / 30卷 / 05期

关键词：

D O I：

10.1109/20.312669

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents an inverse analysis for the crack identification in eddy current nondestructive testing of tubes. The finite element modeling of axisymmetric eddy current phenomena is based on the formulation of the energy functional with the magnetic vector potential. An optimization algorithm in the inverse process employs the objective function expressed in terms of the impedance change of a differential probe which consists of two coils. The proposed method is applied to a simple axisymmetric model with a crack made arbitrarily.

引用

页码：3403 / 3406

页数：4

共 6 条

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[5] IMPEDANCE AND MESH STRUCTURE CONSIDERATIONS IN THE FINITE-ELEMENT ANALYSIS OF EDDY-CURRENT NDT PROBE PHENOMENA [J].

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[6]

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