Phenomenological modeling of ferromagnetic shape memory alloys Conference Paper

abstract

• A thermodynamically consistent phenomenological model is presented which captures the ferromagnetic shape memory effect, i. e. the large macroscopically observable shape change of magnetic shape memory materials under the application of external magnetic fields. In its most general form the model includes the influence of the microstructure for both the volume fraction of different martensitic variants and magnetic domains on the described macroscopic constitutive behavior. A phase diagram based approach is taken to postulate functions governing the onset and termination of the reorientation process. A numerical example is given for an experiment on a NiMnGa single crystal specimen reported in the literature, for which the model is reduced to a two-dimensional case of an assumed magnetic domain structure.

name of conference

• Smart Structures and Materials 2004: Active Materials: Behavior and Mechanics

authors

• Lagoudas, Dimitris

published proceedings

• SMART STRUCTURES AND MATERIALS 2004: ACTIVE MATERIALS: BEHAVIOR AND MECHANICS

author list (cited authors)

• Kiefer, B., & Lagoudas, D. C.

citation count

• 26

complete list of authors

• Kiefer, B||Lagoudas, DC

editor list (cited editors)

• Lagoudas, D. C.

publication date

• January 2004

publisher

• SPIE, the international society for optics and photonics  Publisher

published in

• Proceedings of SPIE  Journal

keywords

• Electromagnetic Continuum
• Ferromagnetic Shape Memory Effect
• Magnetic Field Induced Strain
• Magnetic Shape Memory Alloys
• Martensitic Variant Reorientation
• Phenomenological Constitutive Model
• Stress/magnetic Field Phase Diagram

Digital Object Identifier (DOI)

• 10.1117/12.540081

International Standard Book Number (ISBN) 10

• 0-8194-5304-8

start page

• 164

end page

• 176

volume

• 5387

URL

• http%3A%2F%2Fdx.doi.org%2F10.1117%2F12.540081