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含能材料  2004 

高聚物粘结炸药压缩疲劳特性试验研究

Keywords: 固体力学,高聚物粘结炸药(PBX),疲劳,JB-9014,S-N曲线

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Abstract:

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20.98,22.30,23.60,25.50,26.50MPa,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=20.98MPa(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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