Title :
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
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;
Conference_Titel :
Automation and Computing (ICAC), 2011 17th International Conference on
Conference_Location :
Huddersfield
Print_ISBN :
978-1-4673-0000-1
