基于ANSYS的超弹性模型参数确定  

Determination of Superelesticity Models Parameters Based on ANSYS

作　　者：冯敏亮[1] 刘罡[1] 汪珺[1] 于春丽[1] 

机构地区：[1]合肥学院机械工程系,合肥230601

出　　处：《合肥学院学报（自然科学版）》2012年第3期40-45,共6页Journal of Hefei University :Natural Sciences

摘　　要：电场活化聚合物(Dielectric Elastomer)属于大变形超弹性材料,基于ANSYS的超弹性模型对试验数据进行了拟合处理,选取出适合描述电场活化聚合物的超弹性模型——5参数Mooney-Rivlin模型、9参数Mooney-Rivlin模型和3次Ogden模型.依据非线性力学理论推导出了电场活化聚合物的工程应力计算公式,并利用单轴拉伸试验数据验证了这些计算公式的正确性.Dielectric elastome belongs to hyperelastic material with large deformations, the data was fitted into superelasticity models based on ANSYS, and determined that, Mooney-Rivlin model with five or nine parameters and Ogden model with three orders are suited the mechanical property of dielectric elastomers. According to the non-linear mechanical theory, the formula used in calculation of engineering tensile force of dielectric elastomers was derived, and the validity of the formula was proved by the experimental data.

关 键 词：电场活化聚合物 Mooney—Rivlin模型 Ogden模型 

分 类 号：TP24[自动化与计算机技术—检测技术与自动化装置]