| PTFE/Al含能复合材料的压缩行为研究 |
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| 引用本文： | 徐松林,阳世清,赵鹏铎,李俊玲,卢芳云.PTFE/Al含能复合材料的压缩行为研究[J].力学学报,2009,41(5). |
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| 作者姓名： | 徐松林 阳世清 赵鹏铎 李俊玲 卢芳云 |
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| 作者单位： | 1. 国防科技大学航天与材料工程学院,长沙,410073
2. 国防科技大学理学院,长沙,410073 |
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| 摘 要： | 金属/氟聚合物含能复合材料是一类新型的高级含能材料.研究了室温下Al含量和应变率对PTFE/Al含能复合材料压缩性能和反应性能的影响,所加载的应变率为6×10-3s-1～8×103s-1.材料压缩性能的应变率效应明显:与静态加载相比,动态加载下材料模量和强度明显提高,但应变降低.材料的损伤过程主要包括塑性变形、开裂和反应3部分.随着Al含量的增加,材料准静态和动态压缩强度均呈先升后降的趋势,在Al含量为35%时达到最高值102.6 MPa和154 MPa;引发反应所需加载的应变率增加,但对应的应力值差别不明显,基本在165 MPa左右,材料引发后反应完全性降低.
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| 关 键 词： | 含能材料 PTFE/Al 压缩 应变率 损伤 |
THE STUDY ON THE COMPRESSIVE BEHAVIOR OF PTFE/A1 ENERGETIC COMPOSITE |
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| Xu Songlin
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Yang Shiqing
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Zhao Pengduo
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Li Junling
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Lu Fangyun.THE STUDY ON THE COMPRESSIVE BEHAVIOR OF PTFE/A1 ENERGETIC COMPOSITE[J].chinese journal of theoretical and applied mechanics,2009,41(5). |
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| Authors: | Xu Songlin Yang Shiqing Zhao Pengduo Li Junling Lu Fangyun |
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| Institution: | *;1;College of Aeronautic and Material Engineering;National University of Defense Technology;Changsha 410073;China;College of Science;China |
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| Abstract: | The metal/fluoro-ploymer energetic composite is a new kind of advanced energetic material.The compressive behaviors and reactive performance of polytetrafluorethylene(PTFE)/Al reactive material based on different Al contents are investigated experimentally by split Hopkinson pressure bar(SHPB) and universal testing machine at different strain rates(ranged from 10~(-3)s~(-1) to 10~3s~(-1)) respectively at room temperature. The experimental results showed that the compressive behavior of PTFE/Al is sensitive ... |
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| Keywords: | energetic material PTFE/Al compressive strain rate failure |
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