Simulations of Magnetic Field Variations Around Rectangular Defects of Ferromagnetic Materials

Abstract

The ferromagnetic structures require techniques of defects inspection for their structural monitoring. The early detection of these defects can prevent structural failures that cause economic losses and environment damages. Herein, we present a model for numerical simulations of the magnetic field variations around rectangular defects in ferromagnetic materials by Python programming language. These simulations can predict the behavior of the magnetic field variation caused by rectangular defects considering the study of the magnetic domains of the ferromagnetic material. The numerical simulations of magnetic field around three rectangular defects with different depths (1, 3, and 5 mm) and the same width of 3 mm are studied. The results of the numerical simulations agree well with the behavior of cracks. The proposed model can be used to estimate potential structural failures in ferromagnetic structures.