球形弹丸侵彻明胶数值仿真分析

Numerical Simulation Analysisof Spherical Projectiles Penetrating Gelatin

研究杀伤元对软体组织毁伤效能问题,详细分析球形弹丸侵彻明胶的毁伤机理,表明球形破片侵彻力强。为了明确弹丸侵彻明胶在不同速度下的影响规律,提出建立球形弹丸高速撞击明胶的模型,分析初速、材料对毁伤效能的影响。在有限元软件上进行仿真,研究了速度衰减、能量变化和空腔演化规律,并得出同等初始条件下,高速度、小质量球形破片在较短时间内速度衰减快,能量传递量大的规律,为进一步研究高速枪弹侵彻明胶提供了参考依据,同时对于如何高效地设计战斗部杀伤元具有重要的参考价值。

To study the damage effect of kill element impacting the mollusk tissue, the damage mechanism of spherical projectiles penetrating gelatin was analyzed, indicating that spherical fragment penetrated heavily. In order to clarify the rule of projectiles penetrating gelatin with different speeds, the numerical model of spherical projectiles penetrating gelatin was created, and the influences of initial velocity and materials on the damage effect were ana- lyzed. Simulated with the finite element analysis software, the rules of velocity attenuation, energy variation and cavi- ty evolution were researched. At the same initial conditions, the velocity of spherical projectile with high velocity and small quality decreased quickly, and the ennergy transmission was large. They provides the reference for the research of the high velocity bullets penetration gelatin, as well as how to design of kill element effectively.