孔隙度对PBX炸药冲击起爆影响的实验研究
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摘要
为了研究孔隙度(装药密度)对PBX炸药冲击起爆爆轰成长的影响,采用炸药冲击起爆锰铜压阻一维拉格朗日实验测试系统,测量了不同孔隙度的PBXC03炸药(HMX的质量分数为87%,TATB的质量分数为7%,黏结剂的质量分数为6%)冲击起爆过程不同拉格朗日位置的压力-时间历史。结果显示:在本文装药范围和加载条件下,孔隙度对PBX炸药冲击起爆爆轰过程的影响不单调,中等密度的炸药冲击起爆和爆轰成长最快,这是热点点火过程与燃烧反应过程共同作用的结果。
To investigate the influence of the porosity(charge density) on the shock initiation and detonation of polymer bonded explosives(PBXes), a one-dimensional Lagrangian experimental testing system is adopted to measure the pressure-time histories at different Lagrangian locations of PBXC03(87% HMX, 7%TATB, 6% binder by weight) with three different porosities(or charge densities), in which, an explosive plane-wave lens is used to generate a high-pressure planar detonation wave loading, and the Manganin piezoresistive pressure gauge measurement technique and the attenuation technique by both air-gap and Algap are used. The experimental results show that the detonation grows the fastest in the explosive with a moderate porosity. This work provides more detailed experimental data for the further development of mesoscopic reaction rate models for shock initiation of heterogeneous explosives.
To investigate the influence of the porosity(charge density) on the shock initiation and detonation of polymer bonded explosives(PBXes), a one-dimensional Lagrangian experimental testing system is adopted to measure the pressure-time histories at different Lagrangian locations of PBXC03(87% HMX, 7%TATB, 6% binder by weight) with three different porosities(or charge densities), in which, an explosive plane-wave lens is used to generate a high-pressure planar detonation wave loading, and the Manganin piezoresistive pressure gauge measurement technique and the attenuation technique by both air-gap and Algap are used. The experimental results show that the detonation grows the fastest in the explosive with a moderate porosity. This work provides more detailed experimental data for the further development of mesoscopic reaction rate models for shock initiation of heterogeneous explosives.
引文
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[11]温丽晶,段卓平,张震宇,等.不同加载压力下炸药冲击起爆过程实验和数值模拟研究[J].兵工学报,2013,34(3):283-288.DOI:10.3969/j.issn.1000-1093.2013.03.005.WEN Lijing,DUAN Zhuoping,ZHANG Zhenyu,et al.Experimental and numerical study on the shock initiation of pbxc03explosive under the different loading pressure[J].Acta Armamentarii,2013,34(3):283-288.DOI:10.3969/j.issn.1000-1093.2013.03.005.
[12]温丽晶,段卓平,张震宇,等.HMX基和TATB基PBX炸药爆轰成长差别的实验研究[J].爆炸与冲击,2013,33(S):135-139.WEN Lijing,DUAN Zhuoping,ZHANG Zhenyu,et al.Experimental research on differences of detonation growth process between HMX-based and TATB-based plastic bonded explosives[J].Explosion and Shock Waves,2013,33(S):135-139.
[13]WEN L J,DUAN Z P,ZHANG L S,et al.Effects of HMX particle size on the shock initiation of PBXC03 explosive[J].International Journal of Nonlinear Sciences and Numerical Simulation,2012,13(2):189-194.DOI:10.1515/ijnsns.2011.129.
[14]GIBSON L L,DATTELBAUM D,BARTRAM B,et al.Shock initiation sensitivity and Hugoniot-based equation of state of composition-B Obtained using in-situ electromagnetic gauging[J].Journal of Physics Conference Series,2014,500(19):192004.DOI:10.1088/1742-6596/500/19/192004.
[15]DUAN Z P,LIU Y,PI A G,et al.Foil-like manganin gauges for dynamic high pressure measurements[J].Measurement Science and Technology,2011,22(7):075206.DOI:10.1088/0957-0233/22/7/075206.
[2]TALAWAR M B,AGARWAL A P,ANNIYAPPAN M,et al.Method for preparation of fine TATB(2-5 microm)and its evaluation in plastic bonded explosive(PBX)formulations[J].Journal of Hazardous Materials,2006,137(3):1848.DOI:10.1016/j.jhazmat.2006.05.031.
[3]WANG Z,GUO X,WU F,et al.Preparation of HMX/TATB composite particles using a mechanochemical approach[J].Propellants,Explosives,Pyrotechnics,2016,41(2):327-333.DOI:10.1002/prep.201500136.
[4]GREBENKIN K F.Comparative analysis of physical mechanisms of detonation initiation in HMX and in a low-sensitive explosive(TATB)[J].Combustion,Explosion,and Shock Waves,2009,45(1):78-87.DOI:10.1007/s10573-009-0011-y.
[5]MASSONI J,SAUREL R,BAUDIN G,et al.A mechanistic model for shock initiation of solid explosives[J].Physics of Fluids,1999,11(3):710-736.DOI:10.1063/1.869941.
[6]BOURNE N K,MILNE A M.Shock to detonation transition in a plastic bonded explosive[J].Journal of Applied Physics,2004,95(5):2379-2385.DOI:10.1063/1.1644632.
[7]COOPER M,TROTT W.On the development of a modified wedge test for shock-to-detonation transition in explosives using ORVIS[C]//17th Biennial International Conference of the APS Topical Group on Shock Compression of Condensed Matter.Chicago,Illinois,2011.
[8]URTIEW P A,TARVER C M.Shock initiation of energetic materials at different initial temperatures:review[J].Combustion,Explosion,and Shock Waves,2005,41(6):766-776.DOI:10.1007/s10573-005-0085-0.
[9]VANDERSALL K S,TARVER C M,GARCIA F,et al.Shock initiation experiments on PBX9501 explosive at 150℃for ignition and growth modeling[C]//American Physical Society Meeting on Shock Compression of Condensed Matter,Baltimore,MD,United States,2005.
[10]白志玲,段卓平,景莉,等.飞片冲击起爆高能钝感高聚物粘结炸药的实验研究[J].兵工学报,2016,37(8):1464-1468.DOI:10.3969/j.issn.1000-1093.2016.08.018.BAI Zhiling,DUAN Zhuoping,JING Li,et al.Experimental research on initiation of insensitive high energy plastic bonded explosive by flyer impact[J].Acta Armamentarii,2016,37(8):1464-1468.DOI:10.3969/j.issn.1000-1093.2016.08.018.
[11]温丽晶,段卓平,张震宇,等.不同加载压力下炸药冲击起爆过程实验和数值模拟研究[J].兵工学报,2013,34(3):283-288.DOI:10.3969/j.issn.1000-1093.2013.03.005.WEN Lijing,DUAN Zhuoping,ZHANG Zhenyu,et al.Experimental and numerical study on the shock initiation of pbxc03explosive under the different loading pressure[J].Acta Armamentarii,2013,34(3):283-288.DOI:10.3969/j.issn.1000-1093.2013.03.005.
[12]温丽晶,段卓平,张震宇,等.HMX基和TATB基PBX炸药爆轰成长差别的实验研究[J].爆炸与冲击,2013,33(S):135-139.WEN Lijing,DUAN Zhuoping,ZHANG Zhenyu,et al.Experimental research on differences of detonation growth process between HMX-based and TATB-based plastic bonded explosives[J].Explosion and Shock Waves,2013,33(S):135-139.
[13]WEN L J,DUAN Z P,ZHANG L S,et al.Effects of HMX particle size on the shock initiation of PBXC03 explosive[J].International Journal of Nonlinear Sciences and Numerical Simulation,2012,13(2):189-194.DOI:10.1515/ijnsns.2011.129.
[14]GIBSON L L,DATTELBAUM D,BARTRAM B,et al.Shock initiation sensitivity and Hugoniot-based equation of state of composition-B Obtained using in-situ electromagnetic gauging[J].Journal of Physics Conference Series,2014,500(19):192004.DOI:10.1088/1742-6596/500/19/192004.
[15]DUAN Z P,LIU Y,PI A G,et al.Foil-like manganin gauges for dynamic high pressure measurements[J].Measurement Science and Technology,2011,22(7):075206.DOI:10.1088/0957-0233/22/7/075206.
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