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为研究药型罩材料对K装药性能的影响,运用ANSYS/LS-DYNA有限元软件,对8种常见的药型罩材料进行数值仿真计算,并利用格尼表达式和侵彻深度公式,对装药结构和药型罩材料之间的匹配问题进行分析。结果表明:在同一装药结构中存在匹配的药型罩材料,使形成的侵彻体性能最佳;K装药形成侵彻体的速度和长度随着药型罩材料密度的增大而变小,但其中钼的动能最大,能量利用率最高,是K装药首选的药型罩材料;药型罩材料的声速对侵彻体性能有一定的影响,即声速高的材料不一定形成侵彻体的速度就高,但是要获得高速的连续射流,其材料必然要求具有高声速的特质。
In order to study the influence of the medicine cover material on the chargeability of K, the numerical simulation of eight common medicine cover materials was carried out by ANSYS / LS-DYNA finite element software. Using the Gini formula and penetration depth formula, Analysis of the matching between the charge structure and the material of the medicine cover. The results show that there is a matching drug-type cover material in the same charge structure, which results in the best performance of the penetration body. The speed and length of K-shaped penetration body change with the increase of drug-type cover material density Small, but the maximum kinetic energy of molybdenum, the highest energy efficiency, is the preferred K charge medicine cover material; drug cover material velocity of penetration have some impact on the performance of the material, the sound velocity of the material is not necessarily formed Totally high speed, but to obtain high-speed continuous jet, the material will inevitably require a high speed of sound characteristics.