The Further Exploration of Applying Small-Strain and Large-Strain Formulations to SMA

Abstract:

Recently, our research team has been considering to applying shape memory alloys (SMA) constitutive model to analyze the large and small deformation about the SMA materials because of the thermo-dynamics and phase transformation driving force. Accordingly, our team use simulations method to illustrate the characteristics of the model in large strain deformation and small strain deformation when different loading, uniaxial tension, and shear conditions involve in the situations. Furthermore, the simulation result unveils that the difference is nuance concerning the two method based on the uniaxial tension case, while the large deformation and the small deformation results have huge difference based on shear deformation case. This research gives the way to the further research about the constitutive model of SMA, especially in the multitiaxial non-proportional loading aspects.

• Periodical: Advanced Materials Research (Volume 529)
• Pages: 228-235
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.529.228
• Online since: June 2012
• Authors: Jie Yao, Yong Hong Zhu
• Keywords: Large Strain, SMA, Small Strain

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