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Conventional Plasticity Constitutive Model for Shape Memory Alloys

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Abstract:

A two-phase constitutive model for shape memory alloys (SMAs) is proposed based on the fact that SMAs is dynamically composed of austenite and martensite. The behavior of SMAs is regarded as the dynamic combination of the individual behavior of each phase. This model can describe the main characteristics of SMAs, such as pseudoelasticity and shape memory effect. The corresponding numerical algorithm was also developed to describe the main features of shape memory alloy Au-47.5at.%Cd.

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Periodical:

Advanced Materials Research (Volume 216)

Pages:

469-473

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.216.469

Citation:

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Online since:

March 2011

Authors:

Hai Tao Li, Xiang He Peng

Keywords:

Constitutive Model, Shape Memory Alloy Actuator, Two-Phase Mixtures

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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