Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.ijplas.2006.08.002
Title: Multi-axial behavior of shape-memory alloys undergoing martensitic reorientation and detwinning
Authors: Pan, H.
Thamburaja, P. 
Chau, F.S. 
Keywords: A. Phase transformation
B. Constitutive behavior
B. Crystal plasticity
C. Finite elements
C. Mechanical testing
Issue Date: Apr-2007
Source: Pan, H.,Thamburaja, P.,Chau, F.S. (2007-04). Multi-axial behavior of shape-memory alloys undergoing martensitic reorientation and detwinning. International Journal of Plasticity 23 (4) : 711-732. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ijplas.2006.08.002
Abstract: Recently, a rate-independent, finite-deformation-based crystal mechanics constitutive model for martensitic reorientation and detwinning in shape-memory alloys has been developed by Thamburaja [Thamburaja, P., 2005. Constitutive equations for martensitic reorientation and detwinning in shape-memory alloys. Journal of the Mechanics and Physics of Solids 53, 825-856] and implemented in the ABAQUS/Explicit [Abaqus reference manuals. 2005. Providence, RI] finite-element program. In this work, we show that the aforementioned model is able to quantitatively predict the experimental response of an initially textured and martensitic polycrystalline Ti-Ni rod under a variety of uniaxial and multi-axial stress states. By fitting the material parameters in the model to the stress-strain response in simple tension, the constitutive model predicts the stress-strain curves for experiments conducted under simple compression, torsion, proportional-loading tension-torsion, and path-change tension-torsion loading conditions to good accord. Furthermore the constitutive model also reproduces the force-displacement response for an indentation experiment to reasonable accuracy. © 2006 Elsevier Ltd. All rights reserved.
Source Title: International Journal of Plasticity
URI: http://scholarbank.nus.edu.sg/handle/10635/60838
ISSN: 07496419
DOI: 10.1016/j.ijplas.2006.08.002
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