Focus: To develop and perform stability analysis on phenomenological constitutive models that describe the magneto-thermo-mechanical coupling of magnetic SMAs.
Phenomenological, constitutive models are developed to describe the behavior of magnetic SMAs (e.g., NiMnGa).
These models use Maxwell's magneto-static equations and account for the couplings between the magnetic field, temperature, and mechanical loads. Effects
of martensitic reorientation as well as field-induced phase trans-formation are considered.
The models are implemented in COMSOL Multi-physics and used
to simulate the behavior of the magnetic SMAs. Analysis is performed to determine the stability of the solution.