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A Simple Rate-Independent Uniaxial Shape Memory Alloy (SMA) Model

Aristotelis E. Charalampakis / George C. Tsiatas

In this paper, three specific uniaxial phenomenological models commonly used for the description of a Shape Memory Alloy (SMA) behavior are examined in detail. In particular, the models examined are the Graesser-Cozzarelli model, the Wilde-Gardoni-Fujino model, and the Zhang-Zhu model. The pertinent model parameters are examined with respect to their physical representation, if any. Based on this analysis, a new simple rate-independent model is proposed which addresses all issues in a unified manner. Finally, powerful metaheuristics are employed for system identification, producing excellent fit with experimental data while revealing valuable information regarding the relative sensitivity of the proposed model parameters.

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A Simple Rate-Independent Uniaxial Shape Memory Alloy (SMA) Model

Aristotelis E. Charalampakis / George C. Tsiatas

In this paper, three specific uniaxial phenomenological models commonly used for the description of a Shape Memory Alloy (SMA) behavior are examined in detail. In particular, the models examined are the Graesser-Cozzarelli model, the Wilde-Gardoni-Fujino model, and the Zhang-Zhu model. The pertinent model parameters are examined with respect to their physical representation, if any. Based on this analysis, a new simple rate-independent model is proposed which addresses all issues in a unified manner. Finally, powerful metaheuristics are employed for system identification, producing excellent fit with experimental data while revealing valuable information regarding the relative sensitivity of the proposed model parameters.

A Simple Rate-Independent Uniaxial Shape Memory Alloy (SMA) Model

Aristotelis E. Charalampakis / George C. Tsiatas

In this paper, three specific uniaxial phenomenological models commonly used for the description of a Shape Memory Alloy (SMA) behavior are examined in detail. In particular, the models examined are the Graesser-Cozzarelli model, the Wilde-Gardoni-Fujino model, and the Zhang-Zhu model. The pertinent model parameters are examined with respect to their physical representation, if any. Based on this analysis, a new simple rate-independent model is proposed which addresses all issues in a unified manner. Finally, powerful metaheuristics are employed for system identification, producing excellent fit with experimental data while revealing valuable information regarding the relative sensitivity of the proposed model parameters.

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Title:

A Simple Rate-Independent Uniaxial Shape Memory Alloy (SMA) Model

Contributors:

Aristotelis E. Charalampakis (author) / George C. Tsiatas (author)

Published in:

Frontiers in Built Environment, Vol 4 (2018)

Publication date:

2018

ISSN:

DOI:

https://doi.org/10.3389/fbuil.2018.00046

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

Keywords:

Shape Memory Alloy (SMA) , identification , hysteresis , rate-independent model , phenomenological model , Engineering (General). Civil engineering (General) , TA1-2040 , City planning , HT165.5-169.9

Metadata by DOAJ is licensed under CC BY-SA 1.0

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