摘要
根据NEPE推进剂的组成及结构特点,采用ANSYS10.0有限元计算软件,建立了NEPE推进剂轴对称有限元计算模型。对NEPE推进剂在单轴拉伸作用下损伤破坏趋势进行了模拟。通过对应力集中因子α和脱粘角θ的比较,讨论了固含量、键合剂加入量、氧化剂组成及氧化剂粒度等推进剂的组成与结构条件的变化对其在单轴拉伸作用下损伤破坏趋势的影响。结果表明,采用所建立的NEPE推进剂轴对称有限元计算模型所模拟的力学性能规律与实验研究的趋势符合得很好。
According to the composition and structure properties of the NEPE propellants, the finite element calculation model of the NEPE solid propellants was established by the ANSYS 10.0 finite element calculation software. The damage trend and variation regularity of the NEPE propellants under unilateral tensile was simulated. Effects of the solid particle content, bonding agent content, composition and particle diameter of the oxidant on the damage trend of NEPE propellants were discussed by comparing the stress concentration factor a and the dcbond angle θ. The results show that the mechanical performance simulated by the established finite element model of the NEPE solid propellants is in good agreement with the experimental regularity.
出处
《含能材料》
EI
CAS
CSCD
北大核心
2009年第1期87-90,共4页
Chinese Journal of Energetic Materials
基金
国防973研究基金资助(项目编号:61337020402)
关键词
材料科学
数值模拟
NEPE推进剂
有限元
损伤破坏趋势
materials science
numerical simulation
NEPE propellant
finite element calculation model
damage trend
