Multiscale constitutive model of magnetic shape memory alloys

Vesselin Stoilov

doi:10.1117/12.599710

16 May 2005 Multiscale constitutive model of magnetic shape memory alloys

Vesselin Stoilov

Proceedings Volume 5761, Smart Structures and Materials 2005: Active Materials: Behavior and Mechanics; (2005) https://doi.org/10.1117/12.599710
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2005, San Diego, California, United States

Abstract

Important advances in multi-scale computer simulation techniques for computational materials science have been made in the last decade as scientists and engineers strive to imbue continuum-based models with more-realistic details at quantum and atomistic scales. One major class of multi-scale models directly couples the atomistic detail to the macro region modeled using continuum concepts and finite element methods. Here, the development of such coupled atomistic/continuum model is presented within a single coherent framework with the aim of providing quantitative description of the constitutive behavior of magnetic shape memory alloys. A formulation of the Helmholtz free energy potential based on one-dimensional Ising model has been derived. The developed thermodynamic potential has been used in the context of the sharp phase front-based continuum model of the first order phase transformations suggested by Stoilov and Bhattacharyya (Acta Mat. 2002).

Citation Download Citation

Vesselin Stoilov "Multiscale constitutive model of magnetic shape memory alloys", Proc. SPIE 5761, Smart Structures and Materials 2005: Active Materials: Behavior and Mechanics, (16 May 2005); https://doi.org/10.1117/12.599710

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