Multiscale approaches for magneto-elasticity in device simulation

•Simplified multiscale modelling of the ferromagnetic magneto-elastic behaviour.•Texture effects in simplified multiscale magneto-elastic behaviour models.•Magnetostriction hysteresis under stress using multiscale-Jiles-Atherton approaches.•Practical implementation of multiscale behaviour models in the finite element method. Magnetoelastic couplings in ferromagnetic materials can be modelled using multiscale approaches. Various degrees of sophistication are accessible depending on the foreseen material and application. Here, we present a set of models, built on this approach, which can be used for devices magnetic field analysis. The representation of combined crystal anisotropy and texture effects is analysed through the introduction of a simplified fiber texture. A method is also proposed for the computation of magnetostriction hysteresis together with magnetization by association with a Jiles-Atherton model. All the models are detailed with their main physical and numerical characteristics, and the whole set of features that are needed for their use in device simulation tools. A test structure is finally simulated using the finite element method in order to illustrate the possibilities offered by these multiscale approaches.