丁羟固体推进剂力学性能模拟计算  

Modeling for mechanical properties of HTPB solid propellants

作　　者：田德余[1] 洪伟良[1] 刘剑洪[1] 李少宁[2] 刘静峰[2] 蔡弘华[1] 陈周武[1] 

机构地区：[1]深圳大学化学与化工学院,广东深圳518060 [2]国防科技大学航天与材料工程学院,湖南长沙410073

出　　处：《推进技术》2008年第1期114-118,共5页Journal of Propulsion Technology

基　　金：国防预研课题(41328030506)

摘　　要：提出了丁羟固体推进剂力学性能的三相结构模型(分散相-界面相-连续相),建立了丁羟固体推进剂力学性能与弹性母体的伸长率和弹性模量、推进剂组分固体含量、粒径、级配、粘合剂和键合剂等的数学关系,进行了编程计算;推进剂抗拉强度和伸长率的计算结果与实验值吻合较好,并用该软件计算研究了弹性母体的伸长率及模量?AP的粒径及级配?键合剂的含量等对推进剂力学性能的影响规律。Three-phase （dispersion phase, interface phase, and continuous phase） HTPB solid propellants mechanical properties constitutive model was proposed. With this model, the relationship between propellant mechanical properties and elongation and modulus of elastomer, content of solid particles, particle size and gradation, bonding agent content, etc. were constructed mathematically. Computer program based on the model was developed to predict the effects of elongation and modulus of elastomer, AP particle size and gradation, and bonding agent content on propellant mechanical properties. The results of calculation of propellant tensile strength and elongation were in good agreement with experiments.

关 键 词：复合推进剂 力学性能 性能预测 抗拉强度 延伸率 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]