Solution of inverse problems in electromagnetic NDE using finite element methods

被引：34

作者：

Yan, MY ^{[1
]}

Udpa, S ^{[1
]}

Mandayam, S ^{[1
]}

Sun, YS ^{[1
]}

Sacks, P ^{[1
]}

Lord, W ^{[1
]}

机构：

[1] Iowa State Univ, Dept Elect & Comp Engn, Ames, IA 50011 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1998年 / 34卷 / 05期

关键词：

inverse problems; nondestructive evaluation; magnetostatic methods; signal inversion; defect characterization;

D O I：

10.1109/20.717682

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 a technique for solving inverse problems in magnetostatic nondestructive evaluation (NDE), using finite element models. In-line inspection of ferromagnetic gas pipelines containing pipe-mall defects, is chosen as the candidate NDE process. The signal inversion technique consists of iteratively solving the forward problem by updating the finite element mesh, rather than the material properties of the finite elements. Preliminary simulation results obtained using a 2D finite element model are presented.

引用

页码：2924 / 2927

页数：4

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