低速陶瓷球侵彻明胶研究

Study on Low-speed Ceramic Sphere Penetrating Gelatin

为研究低速陶瓷球侵彻明胶运动规律,通过试验和数值模拟方法,测量了不同直径陶瓷球的冲击速度和侵彻明胶深度;采用能量守恒模型,计算球形破片侵彻明胶深度;结合试验结果与理论结果进行验证计算。研究发现:对于球形破片侵彻明胶,利用该文的理论分析模型计算出的侵彻深度与试验结果吻合较好;基于理论模型的可靠性,发现低速陶瓷球侵彻明胶,其直径是影响侵彻深度的主要因素;将陶瓷球、钨球、钢球的侵彻能力进行对比,综合考虑侵彻深度和最大空腔半径,结果表明陶瓷球更适合作为毁伤元。

To study the motion law of low-speed ceramic ball penetrating gelatin,the impact velocity and penetration gelatin depth of ceramic ball with different diameters were measured by experiment and numerical simulation.The penetration depth of spherical fragments into gelatin was calculated by using the energy conservation model.The experimental results and theoretical results were combined to verify the calculation.The results show that the penetration depth calculated by the theoretical analysis model in this paper is in good agreement with the experimental results.Based on the reliability of the theoretical model,it was found that the diameter of low-speed ceramic ball penetrating gelatin was the main factor affecting the penetration depth.By comparing the penetration ability of ceramic ball,tungsten ball and steel ball were compared,and the penetration depth and cavity radius were considered.The results show that ceramic ball is more suitable to be used as damage element.