A NEW MODEL OF SHAPE MEMORY ALLOYS  

作　　者：朱祎国 吕和祥 杨大智 

机构地区：[1]Department of Mechanical Engineering,Dalian University of Technology,Dalian 116023,P R China [2]Department of Material Engineering,Dalian University of Technology,Dalian 116023,P R China

出　　处：《Applied Mathematics and Mechanics(English Edition)》2002年第9期1009-1015,共7页应用数学和力学（英文版）

基　　金：Foundation item:the National Natural Science Foundation of China(59731030)

摘　　要：A new constitutive model of shape memory alloys ( SMAs) based on Tanaka' s martensite fraction exponential expression is produced. this new model can present recoverable shape memory strain during different phase transformation, and reflect the action of martensite reorientation. Also it can overcome the defect of Tanaka' s Model when the SMAs' microstructure is fully martensite. The model is very simple and suitable for using, and the correct behavior of the model is proved by test.A new constitutive model of shape memory alloys ( SMAs) based on Tanaka' s martensite fraction exponential expression is produced. this new model can present recoverable shape memory strain during different phase transformation, and reflect the action of martensite reorientation. Also it can overcome the defect of Tanaka' s Model when the SMAs' microstructure is fully martensite. The model is very simple and suitable for using, and the correct behavior of the model is proved by test.

关 键 词：shape memory constitutive model PSEUDOELASTICITY 

分 类 号：TG139.6[一般工业技术—材料科学与工程]