| 复合推进剂的细观失效机理分析 |
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| 引用本文： | 袁嵩,汤卫红,李高春.复合推进剂的细观失效机理分析[J].固体火箭技术,2006,29(1):48-51. |
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| 作者姓名： | 袁嵩 汤卫红 李高春 |
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| 作者单位： | 1. 海军驻西安地区导弹发动机专业军代室,西安,710025
2. 海军航空工程学院机械工程系,烟台,264001 |
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| 摘 要： | 建立了颗粒填充复合推进剂的细观有限元模型,计算了颗粒与基体粘结完好和存在脱粘两种情况下颗粒与基体内的应力分布,分析了复合推进剂的细观失效机理。结果表明,在细观结构下,复合推进剂中的应力分布是不均匀的,推进剂一般首先在极区产生脱粘,颗粒的大小对推进剂的力学性能有较大影响。
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| 关 键 词： | 复合推进剂 脱粘 细观失效 数值模拟 |
| 文章编号： | 1006-2793（2006）01-0048-04 |
| 收稿时间： | 2005-04-07 |
| 修稿时间： | 2005年4月7日 |
Analysis on micro-mechanical failure mechanisms of composite propellant |
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| YUAN Song,TANG Wei-hong,LI Gao-chun.Analysis on micro-mechanical failure mechanisms of composite propellant[J].Journal of Solid Rocket Technology,2006,29(1):48-51. |
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| Authors: | YUAN Song TANG Wei-hong LI Gao-chun |
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| Abstract: | A micro-mechanical finite element model of par ti cle-filled composite propellant was derived,and the stress distributions in the different constituents of composite propellant with perfectly bonded interface and with an interfacial crack were calculated.Then failure mechanisms of composi te propellant were analyzed.The results show that the stresses are inhomogeneous in the composite propellant and debonding cracks are usually generated in the p ole of propellant.The particle size has great effect on the mechanical properti es of propellant. |
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| Keywords: | composite propellant debonding micro-mechanical failure numerical simulation |
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