固体火箭技术2013，Vol.36Issue(3)：358-362,367,6.DOI:10.7673/j.issn.1006-2793.2013.03.014
NEPE推进剂动态力学性能研究
Research of the dynamic mechanical properties of NEPE propellant
摘要
Abstract
The mechanical behaviour of nitrate ester plasticized polyether (NEPE) in compressive tests performed under different strain rates was studied.A visco-hyperelastic constitutive equation in integral form was proposed to describe the finite-deformation response of incompressible NEPE at high strain rates.The equation comprises two parts:a component based on a strain energy density function expressed in polynomial form to characterize static hyperelastic behaviour,and the other in integral form to characterize dynamic viscoelastic behaviour.Established static and dynamic exprimental techniques are employed to determine four parameters in the constitutive relationship.Comparison of predictions based on the proposed model with experiments shows that the equation can be used to describe visco-hyperelastic behaviour of NEPE materials under high strain rates within 45％ of the engineering strain.关键词
NEPE推进剂/固体复合材料/高应变率/粘超弹本构模型Key words
NEPE propellant/ solid polymer material/ high strain rate/ constitutive model分类
航空航天引用本文复制引用
张君发,鞠玉涛,孙朝翔,胡少青..NEPE推进剂动态力学性能研究[J].固体火箭技术,2013,36(3):358-362,367,6.基金项目
中央高校基本科研业务费专项资金(NUST2011XQTR13). （NUST2011XQTR13）
