高温老化条件下的硫化天然橡胶本构模型参数  

Constitutive Model Parameters of NR Vulcanizate Under High Temperature Aging Conditions

作　　者：张启家 王涛 方庆红 吴俊霞 ZHANG Qijia;WANG Tao;FANG Qinghong;WU Junxia(School of Materials Science and Engineering,Shenyang University of Chemical Technology,Shenyang 110142,China;School of Computer Science and Technology,Shenyang University of Chemical Technology,Shenyang 110142,China)

机构地区：[1]沈阳化工大学材料科学与工程学院,辽宁沈阳110142 [2]沈阳化工大学计算机科学与技术学院,辽宁沈阳110142

出　　处：《特种橡胶制品》2024年第6期69-73,共5页Special Purpose Rubber Products

摘　　要：分析研究了橡胶材料老化后的应力-应变性能,并进行了有限元验证试验。通过老化拉伸实验数据,使用两种超弹性本构模型建立有限元模型,分析有限元与试验的拟合度。结果表明,随着老化温度和时间增加,橡胶物理力学性能显著变化,Yeoh模型在描述老化橡胶行为上更优。为橡胶材料老化性能评估提供数值分析方法,对工程应用中性能变化提供理论依据。The stress-strain behavior of rubber materials after aging were analyzed and studied,and finite element verification test was carried out.Based on the aging tensile test data,a finite element model was established using two hyperelastic constitutive models to analyze the fit between the finite element model and the test.The results showed that with the increase of aging temperature and time,the physical and mechanical properties of rubber changed significantly,and the Yeoh model was better in describing the behavior of aged rubber.The study provided a numerical analysis methods for the evaluating the aging performance of rubber materials and a theoretical basis for performance change in engineering applications.

关 键 词：老化 橡胶材料 本构模型 有限元分析 

分 类 号：TQ332[化学工程—橡胶工业]