Using the Barkhausen Effect to Determine the Internal Stress Distribution of S335 Ferromagnetic Steel

The paper presents the results of measurements of stresses and strains of joined steel sheets with various microstructures. The MagStress5d device is used for the research. This device allows for effective and quick measurements of strains and stresses using the Barkhausen effect. It is a phenomenon of inducing voltage pulses in a coil in contact with a ferromagnet subjected to variable stress. This is the result of the reorganization of the magnetic structure under the influence of stress. The obtained results constitute the basis for verifying numerical models for stress state and deformation testing of real constructions.