TiNiFe形状记忆合金管接头应力场模拟  

Coupling force simulation of TiNiFe shape memory alloy pipe-coupling

作　　者：张慧博[1] 王健[1] 金伟[1] 杨锐[1] 

机构地区：[1]中国科学院金属研究所,沈阳110016

出　　处：《中国有色金属学报》2010年第B10期510-513,共4页The Chinese Journal of Nonferrous Metals

摘　　要：通过实验确定TiNiFe形状记忆合金的材料参数,建立该合金的本构方程。对升温恢复过程中管接头和被连接管系统的应力场进行模拟计算,研究管接头内径、壁厚和装配间隙等参数对径向压应力的影响。计算结果表明,为了提高连接强度,可以适当增大管接头壁厚,减小管接头内径和装配间隙。The material parameters of TiNiFe shape memory alloy were determined by experiments, and the constitutive model was established. The coupling force of the system of pipe-coupling and connected tube was simulated with raising temperature, and the influences of inner diameter, wall thickness and fit clearance of pipe-couplings were investigated. In order to improve the connecting strength, the wall thickness was properly increased, and the inner diameter and fit clearance should be decreased.

关 键 词：TiNiFe形状记忆合金 管接头 应力场 模拟 

分 类 号：TG139.6[一般工业技术—材料科学与工程]