MATHEMATICAL MODEL FOR EDDY CURRENT TESTING OF SURFACE FLAWS IN A TWO-LAYER METAL PLATE

被引：0
|
作者：
Koliskina, Valentina [1 ]
Kolyshkin, Andrei [1 ]
机构：
[1] Riga Tech Univ, Dept Engn Math, Riga, Latvia
来源：
M2D2015: PROCEEDINGS OF THE 6TH INTERNATIONAL CONFERENCE ON MECHANICS AND MATERIALS IN DESIGN | 2015年
关键词：
eddy current testing; TREE method; change in impedance; flaw; LAYER;
D O I：
暂无
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
Semi-analytical method for the solution of eddy current testing problem where an air-core cylindrical coil is located above a two-layer metal plate is presented in this work. The upper layer of the plate (metal coating) contains a surface flaw in the form of a circular cylinder coaxial with the coil. The solution is found by the method of truncated eigenfunction expansions. The change in impedance of the coil is calculated for different values of the parameters of the problem. The proposed mathematical model can be applied for the solution of the corresponding inverse problem in order to estimate the parameters of the flaw. Such a model can be used to analyze the effect of corrosion in metal plates.
引用
收藏
页码：41 / 42
页数：2
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