Multi-axial behavior of shape-memory alloys undergoing martensitic reorientation and detwinning

H. Pan, T Prakash G. Thamburaja, F. S. Chau

Research output: Contribution to journalArticle

49 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)711-732
Number of pages22
JournalInternational Journal of Plasticity
Volume23
Issue number4
DOIs
Publication statusPublished - Apr 2007
Externally publishedYes

Fingerprint

Constitutive models
Shape memory effect
Torsional stress
Mechanics
ABAQUS
Stress-strain curves
Constitutive equations
Indentation
Compaction
Physics
Experiments
Crystals

Keywords

  • A. Phase transformation
  • B. Constitutive behavior
  • B. Crystal plasticity
  • C. Finite elements
  • C. Mechanical testing

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Multi-axial behavior of shape-memory alloys undergoing martensitic reorientation and detwinning. / Pan, H.; G. Thamburaja, T Prakash; Chau, F. S.

In: International Journal of Plasticity, Vol. 23, No. 4, 04.2007, p. 711-732.

Research output: Contribution to journalArticle

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