Coupling of phase transformation, reorientation and non-reversible strains in shape memory alloy models: challenges & approaches

0450871 - ÚT 2016 RIV CZ eng A - Abstract
Frost, Miroslav - Sedlák, Petr
Coupling of phase transformation, reorientation and non-reversible strains in shape memory alloy models: challenges & approaches.
ICSMA 17. Brno: Institute of Physics of Materials, Academy of Sciences of the Czech Republic, Brno, 2015 - (Dlouhý, A.; Kunz, L.). A-414-1-A-414-1. ISBN 978-80-87434-07-9.
[International Conference on the Strength of Materials /17./. 09.08.2015-14.08.2015, Brno]
R&D Projects: GA ČR GA14-15264S; GA ČR(CZ) GP14-28306P
Institutional support: RVO:61388998
Keywords : shape memory alloys * plasticity * constitutive modeling
Subject RIV: BM - Solid Matter Physics ; Magnetism

Despite of remarkable progress of polycrystalline-SMA constitutive modeling in the past two decades, coupling of phase transformation, reorientation and irreversible deformation processes in one complex. model still poses a challenge. The difficulties are related, e.g., to quantitative determination of contributions of individual deformation mechanisms in experiments or to the choice of suitable way of their efficient description in a constitutive model, since coping with mutual interaction of multiple processes becomes more difficult within conventional phenomenological plasticity modeling framework. In present contribution, we discuss these with respect to experimental findings available in the literature and with regard to a possible alternative modeling approach based on Generalized Standard Material (GSM) framework.
Permanent Link: http://hdl.handle.net/11104/0252780