International Journal of Scientific & Technology Research

IJSTR@Facebook IJSTR@Twitter IJSTR@Linkedin
Home About Us Scope Editorial Board Blog/Latest News Contact Us

IJSTR >> Volume 6 - Issue 4, April 2017 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Stress Relaxation Of Superelastic Shape Memory Alloy Under Bending And Torsional Load

[Full Text]



Sakib Tanvir, Dr. Md. Ashiqur Rahman



Stress relaxation, superelastic SMA, NiTi alloy Tube, Viscoelastic Response, Bending Load, Torsional Load, Testing Device



Stress Relaxation of Superelastic Shape memory (NiTi) Alloy under bending and torsion is uncommon in literature. Therefore, experimental set up has been devised and test results are obtained for superelastic SMA.Unlike the other common engineering materials superelastic SMA it gives dramatic reduction in stress. In this paper, therefore, results of stress relaxation of superelastic shape memory alloy under bending and torsion are presented graphically and interpreted in terms of stress induced martensitic transformation.



[1] Khan, M. R., 2003. Investigation of local strains of the super elastic shape memory alloy rods for tensile loading-unloading cycles, PhD Thesis, BUET, Dhaka.

[2] Rahman, M. A., 2001. Behaviors of the Super elastic SMA Columns under compression & Torsion, PhD Thesis, Tohoku University, Japan.

[3] Rahman, M. A. and Khan, M. R., 2006. “Unique local deformation of the super elastic shape memory alloy rods during stress relaxation tests”. Structural Engineering & Mechanics, An International Journal (Techno press, South Korea). 22 (5), pp.563-574.

[4] Riggs, M., 2012. Joining Nickel-Titanium to Stainless Steel, Undergraduate Thesis, The Ohio State University.

[5] Internet

[6] Duerig, T. W., 1995. Recent and future applications of shape memory alloy.

[7] FSR Integration Guide and Catalog, Spark fun, USA.

[8] Tobushi, H. Okumura, K., Endo, M., K., 2000.Stress induced martensitic transformation behavior and lateral strain of TiNi shape memory alloy. Proceedings of the 11th ICAST (Nagoya, Japan), pp.367-374.

[9] Miyazaki, S., Ohmi, 1982.Characterstics of deformation and transformation pseudo elasticity of TiNi alloy. J. de alloys Physiques, 15 (C4), pp.255-260