Experimental assessment of parallelogram model for describing magnetomechanical effect in soft magnetic materials

In this paper, we present a single hysteron parallelogram model to describe magnetomechanical effect in soft magnetic ribbons. Following a highly reproducible measurement procedure, three physical parameters and one shape-related parameter are directly identified from the characterization of major hysteresis loops via an inductive method. The corresponding parallelograms are obtained for different values of applied mechanical stress. Experiments are performed in a magnetically shielded environment. We report measurements of major loops, symmetric minor loops, and first-order-reversal-curves under elastic conditions to assess the model response to complex magnetization patterns. Tests are performed on two different magnetic materials, and experimental and modeling results are in a good agreement, demonstrating the model as an easy-to-identify and easy-to-implement candidate for development of sensors and measurement systems for characterization of stress dependent magnetic behavior.