Effects of Composite Armor with Different Rubber Sandwich Thickness against the Shaped Charge Jet Penetration
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摘要: 通过分析应力波在橡胶复合靶板中的传播特性，研究了复合靶板上各层质点速度在应力波作用下的变化情况，分析了应力波在橡胶复合靶板对射流干扰中的作用，结合射流在空气中的断裂模型，提出了射流在复合靶影响下的断裂模型；分析了橡胶夹层厚度对复合靶板抗射流侵彻性能的影响；通过脉冲X光照相技术和穿深实验，研究了橡胶夹层厚度不同时，在射流以68倾角侵彻下，橡胶复合靶板对56 mm口径基准成型装药射流的干扰情况及射流的剩余侵彻能力。研究结果表明：理论分析与实验结果相吻合；橡胶复合靶板对射流有很好的干扰作用；在满足结构效应的情况下，随着天然橡胶夹层厚度的增加，应力波对射流的干扰能力降低，射流的变形程度减小，复合靶板的防护能力降低。Abstract: The particle velocity of the rubber composite armor and the mechanism of the armor interfering with the shaped charge jet were studied by analyzing the wave propagation rules in the armor. The fracture model of shaped charge jet affected by the rubber composite armor was put forward based on the jet fracture model in the air. The effect of the armor thickness on the jet fracture was also analyzed. The theoretical conclusion was proved by the X-ray and DOP (Depth of Penetration) experiments of 56 mm standard shaped charge jet penetrating the rubber composite armor with difference rubber thickness at the angle of 68. The results show that the rubber composite armor can disturb the shaped charge jet effectively and the protection capability reduces with the increasing of the natural rubber thickness while the thickness satisfied the structure effect.
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Key words:
- impact mechanics /
- rubber composite target /
- anti-penetration property /
- rubber sandwich
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