温度载荷下材料参数对药柱结构完整性的影响

Material Parameters Influence on Grain Structure Integrity under Temperature Load

利用有限元方法,分析了在温度载荷下,模量、泊松比、热膨胀系数等材料参数对固体火箭发动机药柱结构完整性的影响,对比了固化降温时药柱的应变随材料参数的变化趋势,并从中找出了一些有益的规律。

By using finite element method, this paper analyszes the influence of module, Poisson＇ s ratio and thermal expansion coefficient for the grain structure integrity under temperature load, contrasts the grain strain change current along with material parameters＇ variety when temperature descends, and finds out some useful rules.