Speaker
Description
Magnetostriction refers to the deformation of magnetostrictive materials under the influence of a magnetic field, as well as the effect of mechanical stresses on their magnetic properties. These effects are important in the design of electromechanical devices, such as electric motors and transformers, where magnetostriction can lead to additional stresses, vibrations, and a reduction in the overall lifespan of the machine. To accurately model and mitigate these effects, a coupled approach that considers both electromagnetic and mechanical interactions is necessary.
In this work, we use a coupled formulation to describe the interaction between the magnetic and mechanical fields. For spatial discretization, we use isogeometric analysis (IGA), a numerical method particularly well-suited for problems involving deformations. By utilizing CAD-based basis functions such as B-splines and NURBS for both geometry representation and the solution space, IGA enables an exact geometric representation while allowing to directly incorporate of deformations directly. This results in a highly accurate modeling of magnetostrictive effects. The effectiveness of the approach is demonstrated through numerical examples.
