Abstract: In order to study HTPB composite solid propellant nonlinear constitutive equation,the Schapery non-linear model and the M-C method were adopted.The results show that the method can decrease the influence of data wavy caused by experiment condition Conclusion and Schapery non-linear model preferably reflects HTPB composite solid propellant mechanic properties

Key words: Hydroxy terminated polybutadient propellant;Visco elastic mechanics;Nonlinear structural analysis;Constitutive equations;Creep test

摘要： 采用Schapery蠕变型非线性粘弹性本构模型并用M C方法 ,分析蠕变实验数据 ,研究了HTPB复合固体推进剂非线性本构关系。结果表明 ,该方法可以减少加卸载时数据波动的影响 ,降低参数拟合对实验条件的要求。Schapery非线性模型较好地反映了HTPB复合固体推进剂的力学性能 ,可以用于固体推进剂的力学分析

关键词: 端羟基聚丁二烯推进剂;粘弹性力学;非线性结构分析;本构方程;蠕变试验