A MODEL CONSIDERING HYDROSTATIC STRESS OF POROUS NITI SHAPE MEMORY ALLOY

查看全文 作　　者：Yuping [1,2]Zhu;Guansuo [1]Dui

机构地区：[1]Institute of Mechanics,Beijing Jiaotong University,Beijing 100044,China;[2]Institute of Mechanics & Engineering,Jiangsu University,Zhenjiang 212013,China

出　　处：《Acta Mechanica Solida Sinica》索引2011年第24卷第4期,共10页

基　　金：supported by the National Natural Science Foundation of China (Nos. 10972027 and 10772021);Foundation of Jiangsu University(No. 11JDG066) 摘　　要：Based on the micromechanical method and thermodynamic theory,a constitutive model for the macroscopic mechanical behavior of porous NiTi shape memory alloy is presented.The hydrostatic stress is considered for porous NiTi according to the transformation function of dense NiTi.The present model takes account of the tensile-compressive asymmetry of NiTi,and can degenerate to model dense material.Numerical calculations,which only need material parameters of dense NiTi,are conducted to investigate the nonlinear and hysteretic strain of porous NiTi,and the predicted results are in good agreement with the corresponding experiments. 关键词：NITI形状记忆合金静水应力多孔 A型细观力学方法本构模型热力学理论力学行为

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A MODEL CONSIDERING HYDROSTATIC STRESS OF POROUS NITI SHAPE MEMORY ALLOY

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引证文献(3)

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