Study on the critical transformation speed of rigid body of high-strength steel projectile penetrating concrete target at high speed
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摘要: 为了预测高强钢弹体高速侵彻混凝土靶的刚体临界侵彻速度，开展了克级高强钢（G50）卵型头长杆弹以1010-1660m/s的速度侵彻C40混凝土靶实验研究和理论分析，得到结论如下：（1）克级G50卵型头长杆弹侵彻C40混凝土靶时的刚体临界侵彻速度为1320-1520m/s；（2）建立了刚体临界侵彻速度理论模型，模型计算结果与本文及文献中的系列实验结果吻合较好；（3）建立了考虑头部侵蚀的侵彻深度模型，与实验结果吻合较好；（4）弹体屈服强度对刚体临界侵彻速度有显著影响，靶体无围压抗压强度对刚体临界侵彻速度有较小影响，实验前的弹体头形系数和弹体尺寸对刚体临界侵彻速度无显著影响。
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关键词:
Abstract: In order to predict the critical penetration speed of high-strength steel projectiles penetrating concrete targets at high speed, the experimental and theoretical analysis of the gram-scale G50 ogive nose long-rod projectiles penetrating C40 concrete targets at a speed of 1010-1660m/s was carried out, and the conclusion was as follows: (1) The critical penetration speed of the rigid body of the G50 ogive nose long rod projectile is about 1320-1520m/s; (2) The theoretical model of the critical penetration velocity of the rigid body is established, the experimental results in this paper and in the literature are in good agreement with the calculation results; (3)The penetration depth model -
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