Shock tube design for high intensity blast waves for laboratory testing of armor and combat materiel

查看全文 作　　者：Elijah [1]COURTNEY;Amy [2]COURTNEY;Michael [1]COURTNEY

机构地区：[1]BTG Research,P.O.Box 62541,Colorado Springs;[2]Exponent,Inc.,3440 Market Street,Philadelphia

出　　处：《Defence Technology(防务技术)》索引2014年第10卷第2期,共6页

基　　金：funded by BTG Research 摘　　要：Shock tubes create simulated blast waves which can be directed and measured lo study blast wave effects under laboratory conditions.It is desirable to increase available peak pressure from ~1 MPa to ~5 MPa to simulate closer blast sources and facilitate development and testing of personal and vehicle armors.Three methods are experimentally investigated to increase peak simulated blast pressure produced by an oxyacetylene driven shock tube while maintaining suitability for laboratory studies.The first method is the addition of a Shchelkin spiral priming section which supports a deflagration to detonation transition.This approach increases the average peak pressure from 1.17 MPa to 5.33 MPa while maintaining a relevant pressure-time curve(near Friedlander waveform).The second method is a bottleneck between the driving and driven sections.Coupling a 79 mm diameter driving section to a 53 mm driven section increases the peak pressure from 1.17 MPa to 2.25 MPa.A 103 mm driving section is used to increase peak pressure to 2.64 MPa.The third method,adding solid fuel to the driving section with the oxyacetylene,results in a peak pressure increasing to 1.70 MPa. 关键词：实验室测试激波管冲击波装甲高强度峰值压力设计物资

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Shock tube design for high intensity blast waves for laboratory testing of armor and combat materiel

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