Smart Structures and Systems

  • 제2권4호
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  • Pages.357-363
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  • 2006
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  • 1738-1584(pISSN)
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  • 1738-1991(eISSN)
테크노프레스 (Techno-Press)
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An approach for modelling fracture of shape memory alloy parts

  • Evard, Margarita E. (Research Institute of Mathematics and Mechanics, Saint-Petersburg State University) ;
  • Volkov, Alexander E. (Research Institute of Mathematics and Mechanics, Saint-Petersburg State University) ;
  • Bobeleva, Olga V. (Research Institute of Mathematics and Mechanics, Saint-Petersburg State University)
  • 투고 : 2006.01.14
  • 심사 : 2006.05.03
  • 발행 : 2006.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

Equations describing deformation defects, damage accumulation, and fracture condition have been suggested. Analytical and numerical solutions have been obtained for defects produced by a shear in a fixed direction. Under cyclic loading the number of cycles to failure well fits the empirical Koffin-Manson law. The developed model is expanded to the case of the micro-plastic deformation, which accompanies martensite accommodation in shape memory alloys. Damage of a shape memory specimen has been calculated for two regimes of loading: a constant stress and cyclic variation of temperature across the interval of martensitic transformations, and at a constant temperature corresponding to the pseudoelastic state and cyclic variation of stress. The obtained results are in a good qualitative agreement with available experimental data.

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참고문헌

  1. Belyaev, S. P., Kuzmin, S. L., Likhachev, V. A. and Kovalev, S. M. (1987), 'Deformation and fracture of titanium nickelide under thermocycles and stress', Fizika Metallov i Metalloved, 63(5), 1017-1023 (in Russian)
  2. Friedel, J. (1964), Dislocations, Pergamon Press, Oxford
  3. Hirth, J. P. and Lothe, J. (1968), Theory of Dislocations, McGraw-Hill, New York
  4. Kim, Y. S. and Miyazaki, S. (1997), 'Fatigue properties of Ti-50.9at%Ni shape memory wires', Proceedings of the Second International Conference on Shape Memory and Superelastic Technologies SMST-97, Asilomar, USA, March, p.473-478
  5. MANSIDE Project (1999), 'Memory alloys for new seismic isolation and energy dissipation devices', Workshop Proceedings, Rome, January
  6. Popov, L. E., Pudan, L. Ya., Kolupaeva, S. N., Kobytev, V. S. and Starenchenko, V. A. (1990), Mathematical Modelling of Plastic Deformation, Tomsk State Univ. Publ. House, Tomsk. (in Russian)
  7. Volkov, A. E. (2002), 'Microstructural modeling of the deformation of shape memory alloys at repeated martensitic transformations', Izv. Akad. Nauk. Ser. Fizicheskaya, 66(9), 1290-1297 (in Russian)
  8. Volkov, A. E. and Casciati, F. (2001), 'Simulation of dislocation and transformation plasticity in shape memory alloy polycrystals', Shape Memory Alloys. Advances in Modelling and Applications, F. Auricchio, L. Faravelli, G. Magonette and V. Torra (eds.) Barcelona, p. 88-104

피인용 문헌

  1. Microstructural modelling of plastic deformation and defects accumulation in FeMn-based shape memory alloys vol.2, 2016, https://doi.org/10.1016/j.prostr.2016.06.196
  2. Simulation of Payload Vibration Protection by Shape Memory Alloy Parts vol.23, pp.7, 2014, https://doi.org/10.1007/s11665-014-1084-7