丁基橡胶粘弹性材料的非线性蠕变行为
Nonlinear Creep Behavior of Viscoelastic Material Butyl Rubber
-
摘要: 对丁基橡胶粘弹性材料进行了不同温度、不同载荷下的蠕变试验,并用经典的线性粘弹性模型预测该材料的蠕变曲线,采用时间-应力等效原理分析材料的非线性蠕变行为.结果表明:参考应力下归一的等效柔量主曲线可用线性模型去描述.Abstract: The creep tests of viscoelastic material butyl rubber were conducted under the conditions of different temperatures and different loads.Some classic linear viscoelastic models were adopted to predict creep curves of the material.Nonlinear creep behavior was investigated by the time-stress equivalence principle.It is revealed that the main curves of equivalent creep compliance can be described by using linear model.