固体火箭技术2016，Vol.39Issue(4)：560-564,5.DOI:10.7673/j.issn.1006-2793.2016.04.020
EPDM包覆层热解状态下的力学行为及本构模型
Mechanical behavior and constitutive model of EPDM inhibitor
摘要
Abstract
To describe the mechanical behavior of EPDM inhibitor of solid rocket in different thermal degradation, the range of thermal degradation temperature of EPDM was determined by thermogravimetric analysis. Stress⁃strain curves of EPDM under differ⁃ent degree of pyrolysis were obtained by quasi⁃static mechanics experiments. Based on Ogden(n=2) model, constitutive model were established respectively to obtain the model parameters by fitting mechanics characteristic curves of EPDM under different de⁃grees of pyrolysis. The results show that primarily water and gas are released at the initial stage of pyrolysis, and mechanical behav⁃iors of the composite could be described by visco⁃hyperelastic constitutive model. With the increase of degree of pyrolysis, rubber matrix and filler fibers were degraded and the composite presents superelastic⁃brittle characteristics.关键词
三元乙丙/包覆层/热解/粘超弹本构模型/超弹脆性本构模型Key words
EPDM/inhibitor/pyrolysis/visco-hyperelastic constitutive model/superelastic-brittle constitutive model分类
航空航天引用本文复制引用
张中水,许进升,陈雄,蒋晶..EPDM包覆层热解状态下的力学行为及本构模型[J].固体火箭技术,2016,39(4):560-564,5.基金项目
高能聚合物冲击载荷下热-力耦合模型研究（ BK20140772）。 （）
