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Towards a micromagnetics‐inspired framework for the modelling of variant switching in magnetic shape memory alloys
Author(s) -
Bartel Thorsten,
Kiefer Björn,
Buckmann Karsten,
Menzel Andreas
Publication year - 2017
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201710169
Subject(s) - micromagnetics , shape memory alloy , martensite , finite element method , magnetic domain , domain (mathematical analysis) , materials science , computer science , motion (physics) , domain wall (magnetism) , statistical physics , physics , condensed matter physics , magnetization , magnetic field , thermodynamics , microstructure , artificial intelligence , metallurgy , mathematics , mathematical analysis , quantum mechanics
This contribution deals with a micromechanical model for the simulation of the magnetomechanical behaviour of magnetic shape memory alloys which captures effects such as martensite variant switching, domain wall motion, and the rotations of local magnetisations. It is revealed, however, that the implementation into micromagnetics‐inspired Finite Element schemes cannot be realized in a standard fashion but requires the treatment of state variables via macroscopic fields. (© 2017 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)