Investigation on Mechanical Behaviors of Shape Memory Alloy Torsion Rod

Abstract:

DSC test is carried out to determine the phase transformation temperatures of a NiTi SMA, which include martensitic starting temperature, martensitic finishing temperature, austenitic starting temperature and austenitic finishing temperature. The mechanical behaviors of shape memory alloy (SMA) torsion rod are investigated by using Zhou’s shear constitutive equation of SMA and the theorem of circular shaft in mechanics of materials. A critical torque equation is developed to describe the relationship between the martensitic phase transformation critical torque of SMA torsion rod and temperature.

• Periodical: Advanced Materials Research (Volumes 179-180)
• Pages: 455-458
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.179-180.455
• Online since: January 2011
• Authors: Bo Zhou, Zhen Qing Wang, Yan Ju Liu, Jin Song Leng
• Keywords: Critical Torque Equation, Mechanical Behavior, Shape Memory Alloy Actuator, Torsion Rod

References

[1] C. Liang and C. A. Rogers: J. Intell. Mater. Sys. Struct. Vol. 1 (1990), p.207.

[2] B. Zhou and S. H. Yoon: Smart Materials and Structures Vol. 15 (2006), p. (1967).

[3] A. P. Jardine, J. N. Kudva, C. Martin and K. Appa: Proc. SPIE Vol. 2717 (1996), p.160.

[4] F. M. Davidson and C. Liang: Proc. SPIE Vol. 2717 (1996), p.672.

[5] A. C. Keefe and G. P. Carman: Smart Mater. Struct. Vol. 9 (2000), p.665.

[6] B. Zhou, J. Yin, H. Qi and L. M. Zhou: Proc. of SPIE Vol. 7644 (2010), p.764427.

[7] B. Zhou, Z. Q. Wang and W. Y. Liang: Acta Metallurgica Sinica Vol. 42 (2006), p.919.

[8] B. Zhou, Y. Liu and J. Leng: Liang: Acta Metallurgica Sinica Vol. 45 (2009), p.1179.