含能破片引爆带壳炸药过程的数值模拟

李旭锋 李向东 顾文彬 李裕春 秦入平

李旭锋, 李向东, 顾文彬, 李裕春, 秦入平. 含能破片引爆带壳炸药过程的数值模拟[J]. 爆炸与冲击, 2014, 34(2): 202-208. doi: 10.11883/1001-1455(2014)02-0202-07
引用本文: 李旭锋, 李向东, 顾文彬, 李裕春, 秦入平. 含能破片引爆带壳炸药过程的数值模拟[J]. 爆炸与冲击, 2014, 34(2): 202-208. doi: 10.11883/1001-1455(2014)02-0202-07
Li Xu -feng, Li Xiang -dong, Gu Wen -bin, Li Yu -chun, Qin Ru -ping. Numerical simulation on detonating shelled explosives by energetic fragments[J]. Explosion And Shock Waves, 2014, 34(2): 202-208. doi: 10.11883/1001-1455(2014)02-0202-07
Citation: Li Xu -feng, Li Xiang -dong, Gu Wen -bin, Li Yu -chun, Qin Ru -ping. Numerical simulation on detonating shelled explosives by energetic fragments[J]. Explosion And Shock Waves, 2014, 34(2): 202-208. doi: 10.11883/1001-1455(2014)02-0202-07

含能破片引爆带壳炸药过程的数值模拟

doi: 10.11883/1001-1455(2014)02-0202-07
基金项目: 国家自然科学基金项目(10902053)
详细信息
    作者简介:

    李旭锋(1975—), 男, 博士研究生, 助理工程师

  • 中图分类号: O381; TJ414.1

Numerical simulation on detonating shelled explosives by energetic fragments

Funds: Supported by the National Natural Science Foundation of China (10902053)
More Information
  • 摘要: 将引爆模拟战斗部等效为带铝壳炸药,设计了一种新型含能破片作为毁伤元,利用非线性有限元LS -DYNA软件对该含能破片侵彻、引爆带壳炸药的作用过程进行了数值模拟。用“升降法”得到了该“含能破片”对不同盖板厚度带壳炸药的引爆速度,同时与普通破片引爆同规格带壳炸药进行了对比,并进行了实验验证。结果表明,通过控制含能破片的撞击速度和含能物质的延迟起爆时间,可有效引爆盖板厚度为8~16mm的带铝壳炸药。
  • 图  1  含能破片结构示意图

    Figure  1.  Schematic diagram of energetic fragment

    图  2  典型参照点位置

    Figure  2.  Typical selection points

    图  3  普通破片撞击带壳炸药时的压力曲线

    Figure  3.  Pressure curves of detonating shelled explosives with ordinary fragment

    图  4  含能破片引爆带壳炸药时的压力曲线

    Figure  4.  Pressure curves of detonating shelled explosives with energetic fragment

    图  5  含能破片引爆时装药的应力状态

    Figure  5.  Stress state of explosive with energetic fragment

    图  6  带壳炸药的引爆情况

    Figure  6.  Detonation cases of shelled explosives

    图  7  参照点位置

    Figure  7.  Typical reference points

    图  8  破片延迟23μs起爆时参照点的压力

    Figure  8.  Pressure curves of reference points under 23μs delay time

    图  9  破片延迟24μs起爆时参照点的压力

    Figure  9.  Pressure curves of reference points under 24μs delay time

    图  10  破片延迟27μs起爆时参照点的压力

    Figure  10.  Pressure curves of reference points under 27μs delay time

    图  11  带壳炸药的引爆情况

    Figure  11.  Detonation cases of shelled explosives

    图  12  参照点的压力

    Figure  12.  Pressure curves of reference points

    图  13  破片、带壳炸药和装药引爆、半爆后壳体碎片

    Figure  13.  Energetic fragment, shelled explosives and detritus after detonation and incomplete detonation

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出版历程
  • 收稿日期:  2012-09-24
  • 修回日期:  2012-12-17
  • 刊出日期:  2014-03-25

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