Abstract
In this paper influence of uniaxial stress loading on local changes of magnetic properties in a non-oriented silicon steel was examined. The measurements were carried out for different direction of loading force in respect to the rolling direction of the steel. Impact of the relationship between the rolling and the loading direction on evaluation of magnetic properties changes caused by stress was investigated using samples cut out at three different angles from the steel sheet. During the experiments two types of transducers with two and three sensitivity axes operating under rotating AC and static DC field were utilized. First, the observation of local changes of parameters related to a vector magnetic flux was carried out. Then algorithms of measured signals parameterization were utilized and evaluation of the stress distribution in tested samples was proceeded. Finally, the statistical analysis of computed signals parameters was applied and the correlation with stress-strain curve was assessed.