Date of Original Version
Copyright 2010 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The version of record may be found at http://dx.doi.org/10.1063/1.3319503
Abstract or Description
The unusual properties of many multifunctional materials originate from a structuralphase transformation and consequent martensitic microstructure. Phase-field models are typically used to predict the formation of microstructural patterns and subsequent evolution under applied loads. However, formulating a phase-field energy with the correct equilibrium crystal structures and that also respects the crystallographic symmetry is a formidable task in complex materials. This paper presents a simple method to construct such energy density functions for phase-field modeling. The method can handle complex equilibrium structures and crystallographic symmetry with ease. We demonstrate it on a shape memoryalloy with 12 monoclinic variants.
Applied Physics Letters, 96, 081916.