Constitutive equations for martensitic reorientation and detwinning in shape-memory alloys

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95 Citations (Scopus)

Abstract

A crystal-inelasticity-based constitutive model for martensitic reorientation and detwinning in shape-memory alloys (SMA) was developed from basic thermodynamic principles. The model was implemented in a finite-element program by writing a user-material subroutine. The macroscopic stress-strain responses were calculated through a homogenization scheme. The calculations showed that the macroscopic stress-strain response depends strongly on the initial martensite microstructure and crystallographic texture of the material.

Original languageEnglish
Pages (from-to)825-856
Number of pages32
JournalJournal of the Mechanics and Physics of Solids
Volume53
Issue number4
DOIs
Publication statusPublished - Apr 2005
Externally publishedYes

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constitutive equations
shape memory alloys
Constitutive equations
Shape memory effect
retraining
subroutines
Subroutines
homogenizing
Constitutive models
martensite
Martensite
textures
Textures
Thermodynamics
thermodynamics
Crystals
microstructure
Microstructure
crystals

Keywords

  • Constitutive behavior
  • Crystal mechanics
  • Finite elements
  • Martensitic phase transformation
  • Mechanical testing

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Condensed Matter Physics

Cite this

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abstract = "A crystal-inelasticity-based constitutive model for martensitic reorientation and detwinning in shape-memory alloys (SMA) was developed from basic thermodynamic principles. The model was implemented in a finite-element program by writing a user-material subroutine. The macroscopic stress-strain responses were calculated through a homogenization scheme. The calculations showed that the macroscopic stress-strain response depends strongly on the initial martensite microstructure and crystallographic texture of the material.",
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AB - A crystal-inelasticity-based constitutive model for martensitic reorientation and detwinning in shape-memory alloys (SMA) was developed from basic thermodynamic principles. The model was implemented in a finite-element program by writing a user-material subroutine. The macroscopic stress-strain responses were calculated through a homogenization scheme. The calculations showed that the macroscopic stress-strain response depends strongly on the initial martensite microstructure and crystallographic texture of the material.

KW - Constitutive behavior

KW - Crystal mechanics

KW - Finite elements

KW - Martensitic phase transformation

KW - Mechanical testing

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