| 球形和等长径圆柱装药在爆炸近区内载荷差异的实验研究 |
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| 引用本文： | 刘文祥,张德志,钟方平,李焰.球形和等长径圆柱装药在爆炸近区内载荷差异的实验研究[J].爆炸与冲击,2013,33(3):330-336. |
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| 作者姓名： | 刘文祥 张德志 钟方平 李焰 |
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| 作者单位： | 西北核技术研究所,陕西西安,710024;西北核技术研究所,陕西西安,710024;西北核技术研究所,陕西西安,710024;西北核技术研究所,陕西西安,710024 |
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| 摘 要： | 为了研究爆炸近区内装药形状对爆炸载荷的影响,运用压杆法测量了爆炸容器内壁的压力。通过 实验发现,对于圆柱装药径向方向上的正反射爆炸载荷,等长径圆柱装药的压力峰值、冲量与相同当量下球形 装药对应量的比最大超过2。还通过实验验证了数值模拟,并运用数值模拟获得2种装药形状下爆炸载荷的 静水压、密度、粒子速度,得到爆炸近区内2种装药形状载荷的差异以及该差异随爆心距离的变化规律。
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| 关 键 词： | 爆炸力学 爆炸载荷 压杆法 装药形状 爆炸近区 |
Blast loading difference between spherical charge and cylindrical charge with length equal to diameter at small scaled distances |
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| Liu Wen-xiang
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Zhang De-zhi
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Zhong Fang-ping
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Li Yan.Blast loading difference between spherical charge and cylindrical charge with length equal to diameter at small scaled distances[J].Explosion and Shock Waves,2013,33(3):330-336. |
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| Authors: | Liu Wen-xiang Zhang De-zhi Zhong Fang-ping Li Yan |
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| Institution: | 1.NorthwestInstituteof NuclearTechnology,Xi’an710024,Shaanxi,China |
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| Abstract: | Thepressureattheinnerwalloftheexplosionvesselwasmeasuredbyusingthepressure barmethodtoinvestigatetheinfluencesofthechargeshapeontheblastloadinginthefieldnearthe explosivesource.Theexperimentalresultsdisplaythatthemaximumratioofthepeakandimpulseof thereflectedloadingintheradialdirectioninducedbythecylindricalchargewiththelengthequalto itsdiametertothatinducedbyanequivalentsphericalchargeislargerthantwo.Numericalresults, obtainedbythenumericalmodelwhichisvalidatedbytheexperimentalresults,revealthedifferences ofhydrostaticpressure,density,particlevelocityofblastloadingbetweenthetwochargesandthe changesofthedifferencesoverthescaleddistancefromtheblastcenter. |
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| Keywords: | mechanics of explosion blast loading pressure bar method charge shape small scaled distance |
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