Finite Element Analysis of Coupling Force for TiNiFe Shape Memory Pipe Coupling
Shape memory alloy (SMA) is widely used in aerospace devices, and shape memory pipe coupling is one of the most successful SMA applications. Dimension design is a key aspect for shape memory pipe coupling, and determines the connecting strength of the connecting system. Numerical simulation provides a theoretical basis for dimension design. In this paper, finite element method (FEM) is used to simulate the coupling force of the connecting system. In the simulation,material property parameters of titanium-nickel-iron (TiNiFe) SMA are measured from experiments. Three-dimensional analysis for pipe coupling is performed with a thermo-mechanical model. The influence of inner diameter, expansion ratio of diameter and operating temperature on the radial stress of the connecting system was investigated. The results of the simulation are used to guide the adjustment of parameters such as the inner diameter and the expansion ratio of diameter for the purpose of maximizing the connecting strength.
Titanium-nickel-iron ( TiNiFe) shape memory alloy pipe coupling coupling force finite element method
Huibo Zhang Jian Wang Wei Jin Rui Yang
Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
国际会议
The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)
北京
英文
1681-1684
2011-06-19（万方平台首次上网日期，不代表论文的发表时间）