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Constitutive model of shape memory alloys: Theoretical formulation and experimental validation

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Title: Constitutive model of shape memory alloys: Theoretical formulation and experimental validation
Authors: De la Flor, S. silvia.delaflor@urv.net, Urbina, C.1, Ferrando, F.1
Source: Materials Science & Engineering: A. Jul2006, Vol. 427 Issue 1/2, p112-122. 11p.
Subjects: Alloys, Shape memory alloys, Metallic composites, Metals
Abstract: Abstract: The technological application of nickel–titanium shape memory alloys (SMA) requires a constitutive model that can be easily implemented into numerical methods. It should also be possible for the parameters of this model to be obtained experimentally. For these reasons, macroscopic constitutive models have gained ground in SMA designs. To develop a new macroscopic model that encompasses all the characteristics of these materials over the whole range of transformation temperatures, several macromechanical models have been analysed, evaluated and experimentally validated. From the discrepancies observed in these experimental validations, a model is proposed based on a specific critical stress–temperature diagram. In this model, various laws of evolution are formulated for the martensite fraction. Expressions for the elastic modulus and constitutive transformation tensor are also proposed. Experimental validation showed that this model predicts the behaviour of the material better than the previous models. [Copyright &y& Elsevier]
Copyright of Materials Science & Engineering: A is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 21339928
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Constitutive model of shape memory alloys: Theoretical formulation and experimental validation
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  Data: <searchLink fieldCode="AR" term="%22De+la+Flor%2C+S%2E%22">De la Flor, S.</searchLink><i> silvia.delaflor@urv.net</i><br /><searchLink fieldCode="AR" term="%22Urbina%2C+C%2E%22">Urbina, C.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ferrando%2C+F%2E%22">Ferrando, F.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Materials+Science+%26+Engineering%3A+A%22">Materials Science & Engineering: A</searchLink>. Jul2006, Vol. 427 Issue 1/2, p112-122. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Alloys%22">Alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Shape+memory+alloys%22">Shape memory alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Metallic+composites%22">Metallic composites</searchLink><br /><searchLink fieldCode="DE" term="%22Metals%22">Metals</searchLink>
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  Data: Abstract: The technological application of nickel–titanium shape memory alloys (SMA) requires a constitutive model that can be easily implemented into numerical methods. It should also be possible for the parameters of this model to be obtained experimentally. For these reasons, macroscopic constitutive models have gained ground in SMA designs. To develop a new macroscopic model that encompasses all the characteristics of these materials over the whole range of transformation temperatures, several macromechanical models have been analysed, evaluated and experimentally validated. From the discrepancies observed in these experimental validations, a model is proposed based on a specific critical stress–temperature diagram. In this model, various laws of evolution are formulated for the martensite fraction. Expressions for the elastic modulus and constitutive transformation tensor are also proposed. Experimental validation showed that this model predicts the behaviour of the material better than the previous models. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Materials Science & Engineering: A is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.msea.2006.04.008
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        Text: English
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      – SubjectFull: Shape memory alloys
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      – SubjectFull: Metallic composites
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      – SubjectFull: Metals
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      – TitleFull: Constitutive model of shape memory alloys: Theoretical formulation and experimental validation
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              Text: Jul2006
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