基于OpenSees的形状记忆合金驱动力本构的开发

Development of Driving Force Constitutive Model of Shape Memory Alloy Based on OpenSees

形状记忆合金是一种土木工程智能材料,以其驱动力试验数据为基础,提出驱动力本构。基于OpenSees平台,在材料库中添加形状记忆合金材料,综合反应其初应变、温度等因素对驱动力的影响,将OpenSees计算结果与驱动力试验数据进行对比,结果显示二者吻合较好。为基于OpenSees平台进行驱动力仿真分析提供了实现路径。

Shape memory alloy is a type of intelligent material for civil engineering.Based on its driving force test data,the driving force constitutive model was proposed.Based on OpenSees platform,the shape memory alloy materials were added to the material library to comprehensively reflect the influence of initial stress,pre-strain,temperature and other factors on driving force.The OpenSees calculation results were compared with the driving force experimental data.The results show that they are in good agreement,providing a realization path for driving force simulation analysis based on OpenSees platform.