Effect of melting on the critical ignition energy of condensed explosives by a short laser pulse

被引：21
|
作者：
Khaneft, A. V. [1 ]
Duginov, E. V. [1 ]
机构：
[1] Kemerovo State Univ, Kemerovo 650043, Russia
来源：
COMBUSTION EXPLOSION AND SHOCK WAVES | 2012年 / 48卷 / 06期
关键词：
melting; ignition criterion; laser pulse; beam radius; PETN; INITIATION; RADIATION;
D O I：
10.1134/S0010508212060068
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A criterion for the initiation of explosives with a melting point below the ignition temperature by a short laser pulse is obtained. The criterion obtained is in good agreement with numerical solutions of the heat conduction equation in the cylindrical coordinate system. This criterion made it possible to explain experiments on the initiation of PETN from an open surface by a laser pulse in the range of transparency with variation in the diameter of the light beam. The calculation results coincided with the experiment at alpha = 0.065 cm(-1) and the Fresnel reflection coefficient.
引用
收藏
页码：699 / 704
页数：6
相关论文
共 50 条
  • [41] Resonance absorption of intense short laser pulse in near critical inhomogeneous plasma
    Hashemzadeh, M.
    Baki, S. M.
    Momeni, M.
    Niknam, A. R.
    WAVES IN RANDOM AND COMPLEX MEDIA, 2019, 29 (02) : 215 - 226
  • [42] Effect to online energy measurement device for long-pulse laser by laser pulse width
    Wei J.
    Guan Y.
    Zhou S.
    Peng Y.
    Hu X.
    Zhang K.
    Zhongguo Jiguang/Chinese Journal of Lasers, 2010, 37 (04): : 1088 - 1092
  • [43] Fiber laser front ends for high energy, short pulse lasers
    Dawson, Jay W.
    Messerly, Mchael J.
    Phan, Henry
    Siders, Craig W.
    Beach, Raymond J.
    Barty, C. P. J.
    2007 IEEE LEOS ANNUAL MEETING CONFERENCE PROCEEDINGS, VOLS 1 AND 2, 2007, : 776 - +
  • [44] Laser short-pulse interaction with gold: Investigation into energy equation
    Kassas, A
    LASERS IN ENGINEERING, 2004, 14 (3-4) : 229 - 246
  • [45] Effect of wakefields on the propagation of a short laser pulse in a plasma channel
    Upadhyay, Ajay K.
    Singh, Vijay
    Jha, Pallavi
    PLASMA PHYSICS AND CONTROLLED FUSION, 2009, 51 (10)
  • [46] Plasma mirror effect with a short-pulse KrF laser
    Foeldes, I. B.
    Barna, A.
    Csati, D.
    Szucs, F. L.
    Szatmari, S.
    SIXTH INTERNATIONAL CONFERENCE ON INERTIAL FUSION SCIENCES AND APPLICATIONS, PARTS 1-4, 2010, 244
  • [47] Effect of laser spot weld energy and duration on melting and absorption
    Fuerschbach, PW
    Eisler, GR
    SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2002, 7 (04) : 241 - 246
  • [48] Effect of pulse slippage on resonant second harmonic generation of a short pulse laser in a plasma
    Nitikant
    Sharma, AK
    JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2004, 37 (07) : 998 - 1001
  • [49] Effect of multiple scattering on the critical density of the energy used to initiate a PETN–aluminum compound by a neodymium laser pulse
    A. V. Kalenskii
    A. A. Zvekov
    M. V. Anan’eva
    A. P. Nikitin
    B. P. Aduev
    Combustion, Explosion, and Shock Waves, 2017, 53 : 82 - 92
  • [50] Reduction of pulse-to-pulse fluctuation in laser pulse energy using the optical Kerr effect
    Matsuo, Shigeki
    Yan, Lihe
    Si, Jinhai
    Tomita, Takuro
    Hashimoto, Shuichi
    OPTICS LETTERS, 2012, 37 (10) : 1646 - 1648
12345