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卵形弹撞击厚金属靶的侵彻与贯穿

DOI: 10.11858/gywlxb.2013.03.009, PP. 372-378

Keywords: 侵彻,贯穿,卵形弹,金属靶,弹道极限

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Abstract:

研究了刚性卵形弹正撞击下金属厚靶的侵彻与贯穿性能。基于局部化破坏的假设,认为弹体在侵彻过程中,弹表面受到的法向阻力由材料弹塑性变形引起的静阻力和与瞬时侵彻速度有关的动阻力两部分组成,是侵彻速度的线性函数。根据弹头长度和靶厚的相对大小,建立了二阶段的靶体侵彻模型和三阶段的靶体贯穿模型。对于固支金属厚靶的贯穿,给出了厚靶贯穿模型的适用范围。比较发现,模型预测和实验数据在侵彻深度、弹道极限和残余速度方面吻合得较好。

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