Prediction of Shape Recovery for Ni-Ti SMA Wire after Drawing

Ni-Ti 형상기억합금 선재의 인발 공정 후 형상회복 예측에 관한 연구

  • Received : 2013.07.30
  • Accepted : 2013.11.04
  • Published : 2013.12.01


The aim of the current study was to predict shape recovery behavior of Ni-Ti shape memory alloy (SMA) wire after loading-unloading and after wire drawing. The superelasticity of SMA was analyzed by a hyper-elastic model for the Mullins effect using ABAQUS. Firstly, tensile tests and loading-unloading tests of the Ni-Ti SMA wire with a diameter 1.0 mm were performed using an MTS servo-hydraulic tester. The parameters for the Mullins effect were computed by ABAQUS based on curve-fitting of the loading-unloading test data. The proposed FE-model predicted the shape recovery of Ni-Ti SMA after wire drawing. Finally, the effectiveness of the model was verified by drawing experiments. The wire drawing experiments using the Ni-Ti SMA were conducted on a drawing machine(1ton, 50mm/s). In order to evaluate the shape recovery of Ni-Ti SMA, the drawn wires are annealed for 30min at $450^{\circ}C$.


Shape Memory Alloy;Ni-Ti Alloy;Hyper-Elasticity;Mullins Effect;Wire Drawing


  1. K. S. Ho, 2010, A Phenomenological Constitutive Model for Pseudoelastic Shape Memory Alloy, Trans. Mater. Process., Vol. 19, No.8 pp. 468-473.
  2. K. Yoshida, H. Furuya, 2004, Mandrel Drawing and Plug Drawing of Shape-memory-alloy Fine Tubes used in Catheters and Stents, J. Material. Process. Tech., Vol. 19, pp. 145-150.
  3. K. Yoshida, M. Watanabe, H. Ishikawa, 2001, Drawing of Ni-Ti Shape-memory-alloy Fine Tubes used in Medical Tests, J. Material. Process. Tech., Vol. 118, No. 1, pp. 251-255.
  4. S. H. Kim, M. H. Cho, 2007, Experimental Test and Numerical Simulation on the SMA Characteristics and Behaviors for Repeated Actuations, Trans. Korean Soc. Mech. Eng. A, Vol. 31, No. 3, pp. 373-379.
  5. A. R. Pelton, N. Rebelo, T. W. Duerig, A. Wick, 1994, The First International Conference on Shape Memory and Superelastic Technologies(editor: A. Pelton et al), Pacific Grove: MIAS, California, USA, pp. 353-358
  6. Y. J. Kim, J. H. Chung, J. J. Lee, 2008, Analysis on the Behavior of the Shape Memory Alloy using Abaqus UMAT, Trans. Korean Soc. Mech. Eng. A, Vol. 32, No.12, pp. 1153-1160.
  7. S. K. Wu, H. C. Lin, W. C. Yen, 1996, A Study on the Wire Drawing of TiNi Shape Memory Alloys, Mater. Sci. Eng. A, Vol. 215, No. 1-2, pp.113-119.
  8. K. S. Ho, 2011, An Improved Constitutive Model of Shape Memory Alloy, Trans. Mater. Process., Vol. 20, No. 5, pp. 350-356.
  9. X. Wang, B. Xu, Z. Yue, 2007, Phase Transformation Behavior of Pseudoelastic NiTi Shape Memory Alloys under Large Strain, J. Alloy. Compd., Vol. 463, No. 1-2, pp. 417-422.
  10. R. E. Paige, W. V. Mars, 2004, ABAQUS Users' Conference, Cooper Tire & Rubber Company, Boston, Massachusetts, USA, pp. 1-15.
  11. J. Diani, B. Fayolle, P. Gilormini, 2009, A Review on the Mullins Effect, Eur. Polym. J., Vol. 45, No. 3, pp. 601-612.


Supported by : 부산대학교