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A Regularized Sharp Interface Model for Martensitic Phase Transformations at Large Strains
Author(s) -
Hildebrand Felix,
Miehe Christian
Publication year - 2011
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201110183
Subject(s) - microstructure , martensite , dissipative system , shape memory alloy , materials science , phase (matter) , phase field models , interface (matter) , statistical physics , mechanics , thermodynamics , metallurgy , composite material , physics , quantum mechanics , capillary number , capillary action
The macroscopic mechanical behavior of many functional materials crucially depends on the formation and evolution of their microstructure. When considering martensitic shape memory alloys, this microstructure typically consists of laminates with coherent twin boundaries. We suggest a variational‐based phase field model for the dissipative evolution of microstructure with coherence‐dependent interface energy and construct a suitable gradient‐extended incremental variational framework for the proposed dissipative material. We use our model to predict laminate microstructure in martensitic CuAlNi. (© 2011 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)