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超音速侵彻混凝土过程中装药安定性结构设计的动摩擦理论分析

DOI: 10.11858/gywlxb.2012.01.009, PP. 63-68

Keywords: 侵彻,装药安定性,动摩擦,最大装药长度

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Abstract:

根据侵彻过程中弹体内部装药的弹性变形假设,利用弹体结构与内部装药的相对位移、摩擦功、热力学原理和热点理论,提出了装药热安定性设计的弹性理论分析方法。计算中,侵彻弹体的响应函数从空穴膨胀理论出发;利用弹塑性材料中应力波Hugoniot跳跃条件以及流体力学动量和质量守恒方程,分析了弹体侵彻混凝土过程中的弹体表面径向应力;结合牛顿第二定律,采用有限差分技术,获得了弹体侵彻过程的轴向阻力。通过弹性理论分析,得到了弹体侵彻过程中影响装药安定性的重要设计参数,为装药安定性设计提供了理论依据。

References

[1]  Woolf A F. Conventional warheads for long-range ballistic missiles: Background and issues for congress [R]. USA: Congressional Research Service, 2007.
[2]  Bishop R F, Hill R, Mott N F. The theory of indentation and hardness tests [J]. Proc Phys Soc, 1945, 57(3): 147-159.
[3]  Hopkins H G. Dynamic expansion of spherical cavities in metals [A]//Sneddon I, Hill R. Progress in Solid Mechanics [C]. Oxford, UK: Pergamon Press, 1960, 84-164.
[4]  Tate A. A theory for the deceleration of long rods after impact [J]. J Mech Phys Solids, 1967, 15(6): 387-399.
[5]  Forrestal M J, Luk V K. Dynamic spherical cavity-expansion in a compressible elastic-plastic solid [J]. J Appl Mech, 1988, 55(2): 275-279.
[6]  Rosenberg Z, Marmor E, Mayseless M. On the hydrodynamic theory of long-rod penetration [J]. Int J Impact Eng, 1990, 10(1-4): 483-486.
[7]  Martineau R L, Prime M B, Duffey T. Penetration of HSLA-100 steel with tungsten carbide spheres at striking velocities between 0. 8 and 2. 5 km/s [J]. Int J Impact Eng, 2004, 30(5): 505-520.
[8]  Zhou N, Ren H Q, Shen Z W, et al. Experimental study on overload characteristics of projectile penetrating reinforced concrete [J]. Journal of Experimental Mechanics, 2006, 21(5): 572-578. (in Chinese)
[9]  周宁, 任辉启, 沈兆武, 等. 侵彻钢筋混凝土过程中弹丸过载特性的实验研究 [J]. 实验力学, 2006, 21(5): 572-578.
[10]  Zhou N, Ren H Q, Shen Z W, et al. Study on penetration of concrete targets by ogive-nose steel projectile [J]. Chinese Journal of High Pressure Physics, 2007, 21(3): 242-248. (in Chinese)
[11]  周宁, 任辉启, 沈兆武, 等. 卵形头部弹丸侵彻混凝土的研究 [J]. 高压物理学报, 2007, 21(3): 242-248.
[12]  Wang C H, Chen P Y, Xu X C. Filtering of penetration deceleration data and determining of penetration deceleration on the rigid-body [J]. Explosion and Shock Waves, 2007, 27(5): 416-419. (in Chinese)
[13]  王成华, 陈佩银, 徐孝诚. 侵彻过载实测数据的滤波及弹体侵彻刚体过载的确定 [J]. 爆炸与冲击, 2007, 27(5): 416-419.
[14]  Pi A G, Huang F L. Dynamic behavior of a slender projectile on oblique penetrating into concrete target [J]. Explosion and Shock Waves, 2007, 27(4): 331-337. (in Chinese)
[15]  皮爱国, 黄风雷. 大长细比弹体斜侵彻混凝土靶的动力学响应 [J]. 爆炸与冲击, 2007, 27(4): 331-337.
[16]  Song S C, Wang T H, Cai H N, et al. Numerical calculations of adiabatic shearing localization of steel projectile impacting concrete [J]. Explosion and Shock Waves, 2007, 27(3): 246-250. (in Chinese)
[17]  宋顺成, 王庭辉, 才鸿年, 等. 钢制弹丸冲击混凝土时绝热剪切局部化的数值计算 [J]. 爆炸与冲击, 2007, 27(3): 246-250.

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