- Tytuł:
- Modeling of temperature-dependent cyclic performance of superelastic NiTi shape memory alloy
- Autorzy:
-
Xiao, Yao
Ju, Shuangyan
Lin, Jianping - Tematy:
-
shape memory alloy
phase transformation
micromechanics - Pokaż więcej
- Wydawca:
- Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
- Powiązania:
- https://bibliotekanauki.pl/articles/29520080.pdf Link otwiera się w nowym oknie
- Opis:
- In this paper, a three-dimensional micromechanical-based constitutive model is proposed to describe the temperature-dependent performance of a cyclic deformed superelastic NiTi shape memory alloy. The dominant texture of the specimen is prescribed as <111> direction along the longitudinal direction. Apart from martensitic transformation, various mechanisms regarding superelastic degradation are taken into consideration. In order to be extended from the single-crystal scale to the polycrystalline version, the constitutive model is implemented into finite element software. It is verified that the measured cyclic response of a superelastic NiTi is well reproduced by the presented approach. Furthermore, the predicting capability of the proposed model is verified by simulating the mechanical behavior of NiTi tube subjected to cyclic bending.
- Dostawca treści:
- Biblioteka Nauki
Artykuł