半穿甲战斗部的侵彻深度计算方法

Methods of Calculation of the Penetration Depth for Semi-Armor-Piercing Warhead

从经验公式、理论分析和数值模拟角度探讨了半穿甲战斗部的侵彻深度计算方法 .给出了 6种常用的侵彻深度计算经验公式 ,推导得到了基于空腔膨胀理论的理论计算式 ,应用 L S- DYNA3 D三维有限元动力分析软件 ,建立了三维有限元数值模拟模型 ,并应用以上各方法对半穿甲战斗部侵彻混凝土目标的侵彻深度进行了计算和对比 ,分析了不同经验公式。

Depth of penetration for semi armor piercing warhead is discussed making use of methods of empirical formula, theoretical analysis and numerical simulation successively. Six empirical formulas of penetration depth are first contrasted. A theoretical formula is deduced based on cavity expansion theory. Three dimensional finite element package LS DYNA3D is used to build up the finite element model. The penetration depths are calculated and compared using methods mentioned above. The difference in results obtained among the six empirical formulas, theoretical analysis and numerical simulation are contrasted and analyzed.