Study on the Influence of Projectile Material Properties on Hypervelocity Penetration Depth
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摘要: 为研究弹体材料参数(主要指强度、韧性等)对超高速侵彻混凝土靶侵彻深度的影响规律,开展了不同材料性能的93W钨合金柱形弹以2.3~3.6km/s的速度侵彻混凝土靶实验,得到了不同材料性能弹体的侵彻深度和残余弹体长度实验数据,并结合文献[8]中的实验结果以及数值模拟方法,分析了材料参数对侵彻深度、残余弹体长度的影响规律。得到的结论如下:(1)如果弹体材料的韧性增加而强度不变,残余弹体特征参数并未显著改变,侵彻深度无显著变化,侵彻深度极大值对应的弹速也无显著变化;(2)如果弹体材料的强度增加而韧性不变,能够提升弹体抵抗侵蚀的能力,使弹体残余长度增加,临界转变速度增加,进而使刚体侵彻深度和总侵深增加,同时使弹体侵彻深度极大值对应的速度增加。
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关键词:
Abstract: In order to study the influence of projectile material parameters (mainly strength, toughness, etc.) on the penetration depth of hypervelocity penetrating concrete targets, experiments of 93W tungsten alloy column-shaped projectiles with different material properties penetrating into concrete targets at 2.3~3.6km/s were carried out. The experimental data of the penetration depth and residual projectile length of different projectiles were obtained. Combined with the experimental results and numerical simulation in the literature, the influence of material parameters on the penetration depth and the length of the residual projectile at different impact velocities were analyzed. The conclusions obtained are as follows: (1) If the toughness of the projectile material increases and the strength does not change, the characteristic parameters of the residual projectile do not change significantly, and the penetration depth does not change significantly, and no significant change in the velocity of the corresponding maximum penetration depth was found. (2) If the strength of the projectile material is increased and the toughness is constant, the ability of the projectile to resist erosion can be enhanced, the residual length of the projectile was increased, and the critical transition speed was increased, thereby increasing the rigid penetration depth and total penetration depth. At the same time, the velocity corresponding to the maximum value of the projectile penetration depth was increased.-
Key words:
- hypervelocity /
- penetration /
- Tungsten alloy projectile /
- strength /
- toughness /
- concrete
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