| 复合固体推进剂脱模型的研究 |
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| 引用本文： | 彭威,任均国.复合固体推进剂脱模型的研究[J].固体火箭技术,2000,23(2):48-51. |
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| 作者姓名： | 彭威 任均国 |
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| 作者单位： | 国防科技大学一系108室,长沙 |
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| 基金项目： | 国家自然科学基金资助课题 !批准号 19872 0 76 |
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| 摘 要： | 研究了复合固体推进剂颗粒界面的脱湿机理。运用弹笥－粘弹性对应笥原理建立了复合固体推进剂粘弹性脱湿两相球颗粒分析模型，利用能量守恒得到了脱湿时间的控制方程，并导出了以界面粘结能表示的临界脱湿应力的简洁表达式。计算结果表明，颗粒的体积分数、粒径和加载速率对脱湿时间有显著的影响。
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| 关 键 词： | 固体火箭推进剂 界面脱湿^＋ 粘弹性 界面能 |
A Study on Dewetting Model of Composite Solid Propellants |
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| PENG Wei,REN Jun guo,ZHOU Jian ping.A Study on Dewetting Model of Composite Solid Propellants[J].Journal of Solid Rocket Technology,2000,23(2):48-51. |
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| Authors: | PENG Wei REN Jun guo ZHOU Jian ping |
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| Abstract: | The mechanisms of interfacial dewetting of composite solid propellants are studied. Based on the elasticity viscoelasticity correspondence principle and the energy criterion, a simple formula of local critical dewetting stress on the interface between particle and matrix is derived and expressed in terms of the interfacial bonding energy. The effects of particle volume fraction, the size distribution, loading rate and relaxation time of matrix on crtical dewetting time are discussed. |
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| Keywords: | soild rocket propellant interfacial dewetting + viscoelasticity interfacial energy |
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