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Two variant thermomechanical model for shape memory alloys
Published in Elsevier Science Ltd, Exeter
1999
Volume: 26
   
Issue: 3
Pages: 301 - 307
Abstract
A thermomechanical model is proposed to predict the shape memory and superelastic behaviors in two variant shape memory alloys (SMA). The model is based on two internal variables which are the phase fractions of the variants of martensite. The evolution of these internal variables as functions of the stress, strain and temperature loading history is described geometrically in phase space and by differential equations of the Duhem-Madelung form. For any specified constant ratio of the variants of martensite, the model reduces to a one variant thermomechanical model similar to the Ivshin-Pence model.
About the journal
JournalData powered by TypesetMechanics Research Communications
PublisherData powered by TypesetElsevier Science Ltd, Exeter
ISSN00936413
Open AccessNo
Concepts (12)
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    Differential equations
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    ELASTICITY
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    Martensitic transformations
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    Mathematical models
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    Phase space methods
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    Strain
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    Stress analysis
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    DUHEM-MADELUNG MODEL
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    IVSHIN-PENCE MODEL
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    PHASE FRACTION
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    THERMOMECHANICS
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    Shape memory effect