Eddy currents under low-frequency AC magnetic fields: An analytical calculation
Abstract
This paper focuses on the simulation of linear and nonlinear eddy current (EC) responses as implemented in commercial 3MA nondestructive testing systems. An analytical EC formulation, evaluated with robust numerical procedures, is used to investigate the behavior of bilayer specimens. In both linear and nonlinear regimes, the quasi-static magnetic response is described by the arctangent hysteresis model. The model accurately reproduces the electromagnetic meso- to macroscopic behavior, including B–H loops and minor incremental-permeability loops. Its robustness is validated by comparing simulated and experimental signals for various press-hardened components.
Fields of Study & Subjects
Magnetic Properties and Applications
Non-Destructive Testing Techniques
Electromagnetic Effects on Materials
Publication details
- Journal / source
- Journal of Magnetism and Magnetic Materials
- Publisher
- Elsevier BV
- Volume
- 648
- Pages
- 174107–174107
- Publication date
- 7 April 2026
- Language
- EN