Modified Brinson model as an equivalent one-dimensional constitutive equation of SMA spring

Junghyun Ryu; Sungmin Ahn; Je-sung Koh; Kyu-Jin Cho; Maenghyo Cho

doi:10.1117/12.881948

15 April 2011 Modified Brinson model as an equivalent one-dimensional constitutive equation of SMA spring

Junghyun Ryu, Sungmin Ahn, Je-sung Koh, Kyu-Jin Cho, Maenghyo Cho

Proceedings Volume 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011; 79813W (2011) https://doi.org/10.1117/12.881948
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

Abstract

Shape Memory Alloy (SMA) spring has great potential as a component of compact actuating system. Trade-off between recovery force and deformation range due to phase transformation is possible through the control of spring design parameters such as spring diameter. Deformation behavior of SMA spring is complicated function in three-dimensional space because its behavior is a combination of torsion, bending and stretching action. Therefore, three dimensional analysis of SMA spring is the most accurate simulation procedure. In this paper, modified one-dimensional Brinson model for SMA spring is proposed for more efficient and accurate simulation. In addition, numerical simulation of SMA spring is validated by comparing it with the results of experiment.

Citation Download Citation

Junghyun Ryu, Sungmin Ahn, Je-sung Koh, Kyu-Jin Cho, and Maenghyo Cho "Modified Brinson model as an equivalent one-dimensional constitutive equation of SMA spring", Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 79813W (15 April 2011); https://doi.org/10.1117/12.881948

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