| NEPE推进剂在变温环境下的损伤结构及冲击波感度变化研究 |
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| 引用本文： | 郑雪,李敬明,赵孝彬.NEPE推进剂在变温环境下的损伤结构及冲击波感度变化研究[J].固体火箭技术,2009,32(1). |
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| 作者姓名： | 郑雪 李敬明 赵孝彬 |
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| 作者单位： | 1. 中国工程物理研究院化工材料研究所,绵阳,621900
2. 中国航天科技集团公司四院四十二所固体推进剂安全与贮存评估中心,襄樊,441003 |
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| 基金项目： | 国家重点基础研究发展规划(973计划) |
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| 摘 要： | 为研究NEPE推进剂在变温环境条件下的损伤情况及损伤对其冲击波感度的影响,采用温度循环试验、温度冲击试验及液氮冲击试验对NEPE固体推进剂进行了变温环境考核,用力学性能测试、超声参量检测及CT成像法表征了其损伤结构的变化情况,并利用隔板试验对损伤前后NEPE推进剂的冲击波感度进行了测试.研究结果表明,NEPE推进剂在变温环境下其内部会出现一定损伤,且损伤程度随环境严酷程度的增大而增加,但NEPE推进剂内部的热裂纹对其冲击波感度的影响并不明显.
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| 关 键 词： | 物理化学 NEPE推进剂 变温环境 损伤 冲击波感度 |
Damage and shock sensitivity change of NEPE propellant under temperature changing conditions |
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| ZHENG Xue,LI Jing-ming,ZHAO Xiao-bin.Damage and shock sensitivity change of NEPE propellant under temperature changing conditions[J].Journal of Solid Rocket Technology,2009,32(1). |
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| Authors: | ZHENG Xue LI Jing-ming ZHAO Xiao-bin |
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| Institution: | 1.Institute of Chemical Materials;CAEP;Mianyang 621900;China;2.Assessment Center of Solid Propellant'sSafety and Aging;The 42nd Institute of the Fourth Academy of CASC;Xiangfan 441003;China |
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| Abstract: | In order to study the damage and shock sensitivity change of NEPE propellant under temperature changing conditions,propellant specimens were treated under temperature cycling,temperature impact and liquid nitrogen impact environments.The change of damage structure was characterized by mechanical property test,ultrasonic test and CT photography.The shock sensitivity of NEPE propellant before and after liquid nitrogen impact treatment was measured in gap test.The results show that NEPE propellant is damaged t... |
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| Keywords: | physical chemistry NEPE propellant environmental change damage shock sensitivity |
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