Effects of crack thickness in eddy current testing

被引：0

作者：

Albanese, R ^{[1
]}

Rubinacci, G ^{[1
]}

Tamburrino, A ^{[1
]}

Villone, F ^{[1
]}

机构：

[1] Univ Reggio Calabria, EURATOM Assoc, ENEA, CREATE,DIMET, I-89128 Reggio Di Calabria, Italy

来源：

ELECTROMAGNETIC NONDESTRUCTIVE EVALUATION (IV) | 2000年 / 17卷

关键词：

D O I：

暂无

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：

An integral formulation is employed for the numerical simulation of forward problems in eddy current testing, i.e. the prediction of impedance variations or magnetic measurements in the presence of thick cracks in conducting specimens. The numerical formulation is in terms of a two-component current density vector potential, based on a tree-cotree decomposition of the mesh and edge-element basis functions. The method is an extension of an existing procedure able to deal with zero-thickness cracks. The method is tested on the solution of JSAEM Problem 6, which consists in the reconstruction of the shapes of various cracks from the impedance change of a pancake coil. The results are compared with those obtained using the zero-thickness approximation and with the experimental measurements.

引用

页码：25 / 31

页数：7