Modelling and experimental investigation of ferromagnetic material for angular defect detection

Author

Chang, Dong ; Zuo, Xianzhang ; He, Yunze ; Tian, Guiyun ; Zhang, Hong

Author_Institution

Dept. of Electr. Eng., Ordnance Eng. Coll., Shijiazhuang, China

fYear

2011

fDate

10-10 Sept. 2011

Firstpage

246

Lastpage

250

Abstract

Ferromagnetic materials were widely used in various applications, on which crack is one of the most common defects caused by stress and environment factors, especially angular defects. In this paper, angular defects were modelled in the finite element simulation software COMSOL. Based on pulsed magnetic flux leakage testing, the distribution of magnetic flux leakage signal of defects were simulated. Compared with rectangular defects, some features were extracted to recognize the oblique crack. Then the experiments validated the correctness of simulation.

Keywords

ferromagnetic materials; finite element analysis; magnetic flux; materials science computing; nondestructive testing; COMSOL; angular defect detection; environment factors; ferromagnetic material; finite element simulation software; magnetic flux leakage signal distribution; oblique crack recognition; pulsed magnetic flux leakage testing; rectangular defects; Eddy currents; Inspection; Magnetic flux leakage; Magnetic materials; Magnetization; Steel; Pulsed magnetic flux leakage; angular defect; ferromagnetic material; finite element simulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Automation and Computing (ICAC), 2011 17th International Conference on

Conference_Location

Huddersfield

Print_ISBN

978-1-4673-0000-1

Type

conf

Filename

6084935