Transformation Behavior of Shape Memory Alloys in Multiaxial Stress State

被引：0
|
作者：
Yamamoto, T. [1 ]
Suzuki, A. [1 ]
Cho, H. [1 ]
Sakuma, T. [1 ]
机构：
[1] Oita Univ, Fac Engn, Oita 8701192, Japan
来源：
STATE-OF-THE-ART RESEARCH AND APPLICATION OF SMAS TECHNOLOGIES | 2013年 / 78卷
关键词：
Shape memory alloy; Transformation; Numeric study; Accommodation model; Multiaxial stress state; REORIENTATION; MODEL;
D O I：
10.4028/www.scientific.net/AST.78.46
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The transformation behavior of shape memory alloys is simulated for complex loadings of stress, strain and temperature. Calculations are made by using the "Accommodation Model" which is a constitutive model for shape memory alloys considering the accommodation behavior of the transformation strain. Calculated results are presented for the transformation behavior in the axial and shear stress state. These results are compared with those obtained by the experiment where tube specimens of the Ti-Ni shape memory alloy are subjected to the axial and torsion loading. The proposed constitutive model can predict the transformation behavior including the plastic strain effect of polycrystalline Ti-Ni shape memory alloys under non-proportional multiaxial loading condition.
引用
收藏
页码：46 / 51
页数：6
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