基于OpenSees的形状记忆合金材料本构模型的二次开发  

The Secondary Development of Shape Memory Alloy Material Constitutive Model based on OpenSees

作　　者：胡晓斌[1] 王琪[1] 刘坤[1] 

机构地区：[1]武汉大学土木建筑工程学院,湖北武汉430072

出　　处：《佳木斯大学学报（自然科学版）》2015年第2期190-193,共4页Journal of Jiamusi University：Natural Science Edition

摘　　要：针对形状记忆合金材料(SMA),提出了一种修正的Wilde本构模型,给出了FS(Flagshaped)模型耗能参数的计算方法.利用Open Sees软件提供的二次开发平台,基于修正Wilde模型及FS模型,分别开发了相应的新材料,并在材料层次上进行了验证.结果表明:两种材料的计算结果与试验结果吻合较好,表明所编写的新材料具有较高的模拟精度;修正Wilde模型与FS模型相比,其分析精度更高,但计算效率较低.In this paper,a modified Wilde constitutive model was proposed for SMA（ shape memory alloy） material and the method of computing the energy dissipation parameter of FS（ Flag- shaped） model was given. Based on the secondary development platform of Open Sees,the new materials corresponding to the modified Wilde model and FS model were developed and verified respectively on the material level. The calculation results matched well with the experimental ones,indicating that the developed materials have high accuracy. In contrast to the FS model,the modified Wilde model is more accurate but less efficient.

关 键 词：形状记忆合金 修正Wilde模型 FS模型 OPENSEES 二次开发 

分 类 号：TH133[机械工程—机械制造及自动化] TP183[自动化与计算机技术—控制理论与控制工程]