• Title/Summary/Keyword: Shotgun/RQ Bomb 시험

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The Study on Solid Propellant Deflagrabillity by Shotgun & RQ Bomb Test (Shotgun & RQ Bomb시험에 의한 추진제 폭연 특성)

  • 유지창;김창기;이경주
    • Journal of the Korean Society of Propulsion Engineers
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    • v.6 no.3
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    • pp.9-17
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    • 2002
  • This Study is to investigate 8 composite propellants including Butacene and ${Bi_2}{O_3}$ by Shotgun/RQ Bomb test. Burning rate and mechanical properity are known to be major factors in determining the deflagrability of propellant. Propellant including over 5.5% Butacene(Ferrocene grafted HTPB) burned out over 135 m/s of impact velocity during Shotgun/RQ Bomb test. It was blown that Butacene was very sensitive material under high velocity impact. In the test results, propellants under 25mm/s in burning rate at 1500 psia could meet the requirements for IM of UN Test Series 7c(ii). Propellant deflagrabillity depends on burning rate at performance in the results of the present.

Shotgun/RQ Bomb 시험에 의한 추진제 폭연 특성

  • 유지창;김창기;류백능
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2000.11a
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    • pp.29-29
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    • 2000
  • 추진제의 폭연 특성을 실험실 규모로 측정하는 시험방법으로 NAWC에서 개발한 BIC (Ballistic Impact Chamber) 시험과 SNPE에서 개발한 Shotgun/RQ Bomb 시험이 있다. SNPE에서는 화약과 추진제가 UNO 위험등급 분류체계에서 1.6급수(우연한 개시나 반응의 전환 가능성이 거의 없는 매우 둔감한 물질)로 분류되는 기준을 UN Test Series 7c(ii)에 탄속 150m/s에서 dP/dt가 15MPa 이내로 규정하고 있다.(중략)

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Study on the Formulation of an Energetic Thermoplastic Propellant and its Properties(II) (고에너지 열가소성 추진제 제조 및 특성연구(II))

  • Kim, Han-cheol;Park, Eui-Yong;Jeong, Jea-Yun;Kim, Yoon-Gon;Choi, Sung-han;Kang, Tae-won;Oh, Kyeong-won
    • Journal of the Korean Society of Propulsion Engineers
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    • v.24 no.3
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    • pp.41-46
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    • 2020
  • In this study, measurement and analysis results from Differential scanning calorimetry(DSC) and Thermogravimetric analysis(TGA) on the newly developed high-energy thermoplastic elastomer(ETPE) propellant are described, followed by the previous study done under the same title as this paper [1]. The characteristics of high-energy thermoplastic propellant were also verified by conducting thermal analysis, and the LSGT, Shotgun & RQ Bomb test, was carried out as well. High energetic thermoplastic binders containing 45% of GAP(Glycidyl Azide Polymer), energetic plasticizer(DEGDN) and Oxidizer Aonium Perchlorate), RDX(reseach development explosive, cyclotrimethylenetrinitramine) were used to formulate the propellant.