| 高聚物粘结炸药压缩疲劳特性试验研究 |
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| 引用本文： | 蓝林钢,郝莹,温茂萍,庞海燕. 高聚物粘结炸药压缩疲劳特性试验研究[J]. 含能材料, 2004, 12(6): 358-360 |
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| 作者姓名： | 蓝林钢 郝莹 温茂萍 庞海燕 |
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| 作者单位： | 中国工程物理研究院化工材料研究所,四川,绵阳,621900;中国工程物理研究院化工材料研究所,四川,绵阳,621900;中国工程物理研究院化工材料研究所,四川,绵阳,621900;中国工程物理研究院化工材料研究所,四川,绵阳,621900 |
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| 摘 要： | 介绍了高聚物粘结炸药(PBX)压缩疲劳特性试验方法,以JB-9014炸药为研究对象,分别进行最大应力σmax为20.98,22.30,23.60,25.50,26.50 MPa,频率为2Hz的正弦波加载方式下的疲劳试验,得到了JB-9014炸药的压缩疲劳S-N曲线。从S-N曲线推知JB-9014炸药在σmax=20.98 MPa(相当于70％的破坏应力)时,压缩疲劳极限N为2.8×106,说明JB-9014炸药有良好的耐疲劳性能。
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| 关 键 词： | 固体力学 高聚物粘结炸药(PBX) 疲劳 JB-9014 S-N曲线 |
| 文章编号： | 1006-9941(2004)06-0358-03 |
| 收稿时间： | 2004-04-09 |
| 修稿时间： | 2004-04-09 |
Experimental Study on Compressive Fatigue of PBX |
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| LAN Lin-gang,HAO Ying,WEN Mao-ping and PANG Hai-yan. Experimental Study on Compressive Fatigue of PBX[J]. Chinese Journal of Energetic Materials, 2004, 12(6): 358-360 |
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| Authors: | LAN Lin-gang HAO Ying WEN Mao-ping PANG Hai-yan |
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| Affiliation: | Institute of Chemical Materials, CAEP, Mianyang 621900, China;Institute of Chemical Materials, CAEP, Mianyang 621900, China;Institute of Chemical Materials, CAEP, Mianyang 621900, China;Institute of Chemical Materials, CAEP, Mianyang 621900, China |
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| Abstract: | A compressive fatigue testing method of polymer bonded explosive (PBX) was introduced and experimental studied with JB-9014. The frequency of fatigue loading sine was fixed at 2 Hz and the maxi-um compressive stress was 20. 98 ,22. 3 ,23.6,25. 5 ,26. 5 MPa . The S-N curve which is fitted well with exponential law has been obtained. Based on S-N curve, compressive fatigue limit at 20.98 MPa (70% of the comparative strength limit of the PBX) is computed out, Viz. 106cycles. It indicates that JB-9014 has nice assist-fatigue charactaristic. |
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| Keywords: | solid mechanics polymer bonded explosive (PBX) fatigue JB-9014 S-N curve |
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